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#879ECF Color

#879ECF is rgb(135, 158, 207) in RGB, hsl(221, 43%, 67%) in HSL, and about cmyk(35%, 24%, 0%, 19%) in CMYK. It has no registered color name of its own — the closest is Light Cobalt Blue (#88ACE0), clearly related but distinguishable side by side at ΔE 6.17. Black text is the more readable choice on this background.

#879ECF
HEX#879ECF
RGBrgb(135, 158, 207)
HSLhsl(221, 43%, 67%)
HSVhsv(221, 35%, 81%)
CMYKcmyk(35%, 24%, 0%, 19%)
OKLCHoklch(70% 0.077 265)
LABlab(64.71% 0.64 -28.05)
LCHlch(64.71% 28.06 271.31)

What #879ECF 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 #879ECF, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Light Cobalt Blue#88ACE0ΔE 6.17Vista Blue#7C9ED9ΔE 6.3Blue Bell#A2A2D0ΔE 8.67Blue-gray#6699CCΔE 9.12Cerulean Frost#6D9BC3ΔE 9.32Iceberg#71A6D2ΔE 9.86

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

#879ECF Channel Values

How #879ECF 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 135 · G 158 · B 2078-bit channels as sent to the display
HSLH 221° · S 43% · L 67%Easiest model for building lighter and darker variants
HSVH 221° · S 35% · V 81%Matches the picker in most design tools
CMYKC 35% · M 24% · Y 0% · K 19%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.68:1 vs white · 7.82:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #879ECF 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 text2.68:1AA normal AA large AAA normal
TextBlack text7.82:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #879ECF in the contrast checker.

Colors That Go With #879ECF

Pairings derived from color-wheel relationships. The complementary color sits opposite #879ECF; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#879ECF
Complementary
#CFB887
Analogous
#87C2CF
Analogous
#9487CF
Triadic
#CF879E
Triadic
#9ECF87
Split comp.
#CF9487
Split comp.
#C2CF87

Tints & Shades of #879ECF

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

#95A9D5
#A7B8DC
#B6C4E2
#C8D3E9
#D7DFEF
#E9EDF6

Shades

#6683C2
#4769B3
#3A5692
#2D4371
#202F50
#131C2F

Want a full 50-950 ramp with semantic roles? Generate design tokens from #879ECF.

How #879ECF 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#879ECF
Protanopia#9A9ACF
Protanomaly#939CCF
Deuteranopia#9797CF
Deuteranomaly#919ACF
Tritanopia#7DA5A5
Tritanomaly#81A2B7
Achromatopsia#9E9E9E

Test a full palette in the color blindness simulator.

Using #879ECF in Code

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

CSS custom property--color-879ecf: #879ECF;
CSS backgroundbackground-color: #879ECF;
Tailwind configcolors: { 'color-879ecf': '#879ECF' }
SwiftUIColor(red: 0.529, green: 0.620, blue: 0.812)
Android XML<color name="color_879ecf">#879ECF</color>
SVG fillfill="#879ECF"

More Blue Colors

#879ECF sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#879ECF Frequently Asked Questions

What color is #879ECF?

#879ECF is a light blue — rgb(135, 158, 207) in RGB and hsl(221, 43%, 67%) in HSL. It carries no registered color name of its own; the closest named color is Light Cobalt Blue (#88ACE0), which is clearly related but distinguishable side by side at a CIE76 distance of 6.17.

What is the RGB value of #879ECF?

#879ECF is rgb(135, 158, 207) — red 135, green 158, and blue 207 on the 0-255 scale.

What is the CMYK value of #879ECF?

#879ECF converts to approximately cmyk(35%, 24%, 0%, 19%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #879ECF be black or white?

Black text is the more readable choice. #879ECF scores 2.68:1 against white and 7.82:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #879ECF as a CSS color keyword?

No. #879ECF 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 steelblue (#4682B4) at a CIE76 distance of 16.31, which is visibly different.

Open #879ECF 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.