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#57B0FF Color

#57B0FF is rgb(87, 176, 255) in RGB, hsl(208, 100%, 67%) in HSL, and about cmyk(66%, 31%, 0%, 0%) in CMYK. It has no registered color name of its own — the closest is French Sky Blue (#77B5FE), clearly related but distinguishable side by side at ΔE 6.83. Black text is the more readable choice on this background.

#57B0FF
HEX#57B0FF
RGBrgb(87, 176, 255)
HSLhsl(208, 100%, 67%)
HSVhsv(208, 66%, 100%)
CMYKcmyk(66%, 31%, 0%, 0%)
OKLCHoklch(73.7% 0.143 247.9)
LABlab(68.97% -8.97 -47.88)
LCHlch(68.97% 48.72 259.39)

What #57B0FF Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #57B0FF, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

French Sky Blue#77B5FEΔE 6.83Blue Jeans#5DADECΔE 8.62Microsoft Blue#00A2EDΔE 9.09Very Light Azure#74BBFBΔE 9.67Vivid Cerulean#00AAEEΔE 11.17Little Boy Blue#6CA0DCΔE 13.09

Browse the full index of named colors A-Z or every blue in the library.

#57B0FF Channel Values

How #57B0FF breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 87 · G 176 · B 2558-bit channels as sent to the display
HSLH 208° · S 100% · L 67%Easiest model for building lighter and darker variants
HSVH 208° · S 66% · V 100%Matches the picker in most design tools
CMYKC 66% · M 31% · Y 0% · K 0%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.32:1 vs white · 9.06:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #57B0FF background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

Fails AAWhite text2.32:1AA normal AA large AAA normal
TextBlack text9.06:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #57B0FF in the contrast checker.

Colors That Go With #57B0FF

Pairings derived from color-wheel relationships. The complementary color sits opposite #57B0FF; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#57B0FF
Complementary
#FFA557
Analogous
#57FFF9
Analogous
#575CFF
Triadic
#FF57B0
Triadic
#B0FF57
Split comp.
#FF575C
Split comp.
#FFF957

Tints & Shades of #57B0FF

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

#6BBAFF
#85C6FF
#99CFFF
#B3DBFF
#C7E5FF
#E0F1FF

Shades

#299BFF
#0085FA
#006DCC
#00549E
#003C70
#002342

Want a full 50-950 ramp with semantic roles? Generate design tokens from #57B0FF.

How #57B0FF Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#57B0FF
Protanopia#A5A5FF
Protanomaly#8CAAFF
Deuteranopia#9A9AFF
Deuteranomaly#84A3FF
Tritanopia#2ABCBC
Tritanomaly#40B8DA
Achromatopsia#AAAAAA

Test a full palette in the color blindness simulator.

Using #57B0FF in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-57b0ff: #57B0FF;
CSS backgroundbackground-color: #57B0FF;
Tailwind configcolors: { 'color-57b0ff': '#57B0FF' }
SwiftUIColor(red: 0.341, green: 0.690, blue: 1.000)
Android XML<color name="color_57b0ff">#57B0FF</color>
SVG fillfill="#57B0FF"

More Blue Colors

#57B0FF sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#57B0FF Frequently Asked Questions

What color is #57B0FF?

#57B0FF is a light blue — rgb(87, 176, 255) in RGB and hsl(208, 100%, 67%) in HSL. It carries no registered color name of its own; the closest named color is French Sky Blue (#77B5FE), which is clearly related but distinguishable side by side at a CIE76 distance of 6.83.

What is the RGB value of #57B0FF?

#57B0FF is rgb(87, 176, 255) — red 87, green 176, and blue 255 on the 0-255 scale.

What is the CMYK value of #57B0FF?

#57B0FF converts to approximately cmyk(66%, 31%, 0%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #57B0FF be black or white?

Black text is the more readable choice. #57B0FF scores 2.32:1 against white and 9.06:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #57B0FF as a CSS color keyword?

No. #57B0FF is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is cornflowerblue (#6495ED) at a CIE76 distance of 14.48, which is visibly different.

Open #57B0FF in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

Keep exploring: every blue in the color library, the guide to shades of blue, or the full color library.