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#667EA3 Color

#667EA3 is rgb(102, 126, 163) in RGB, hsl(216, 25%, 52%) in HSL, and about cmyk(37%, 23%, 0%, 36%) in CMYK. It has no registered color name of its own — the closest is Shadow Blue (#778BA5), clearly related but distinguishable side by side at ΔE 8.29. Black text is the more readable choice on this background.

#667EA3
HEX#667EA3
RGBrgb(102, 126, 163)
HSLhsl(216, 25%, 52%)
HSVhsv(216, 37%, 64%)
CMYKcmyk(37%, 23%, 0%, 36%)
OKLCHoklch(58.9% 0.064 258.9)
LABlab(51.99% -1.74 -22.88)
LCHlch(51.99% 22.95 265.64)

What #667EA3 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 #667EA3, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Shadow Blue#778BA5ΔE 8.29Air Force Blue#5D8AA8ΔE 8.73Glaucous#6082B6ΔE 8.85Silver Lake Blue#5D89BAΔE 9.24Rhythm#777696ΔE 9.47Queen Blue#436B95ΔE 10.08

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

#667EA3 Channel Values

How #667EA3 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 102 · G 126 · B 1638-bit channels as sent to the display
HSLH 216° · S 25% · L 52%Easiest model for building lighter and darker variants
HSVH 216° · S 37% · V 64%Matches the picker in most design tools
CMYKC 37% · M 23% · Y 0% · K 36%Approximate ink mix; confirm with an ICC profile before printing
Luminance4.14:1 vs white · 5.08:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #667EA3 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 text4.14:1AA normal AA large AAA normal
TextBlack text5.08:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #667EA3 in the contrast checker.

Colors That Go With #667EA3

Pairings derived from color-wheel relationships. The complementary color sits opposite #667EA3; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#667EA3
Complementary
#A38B66
Analogous
#669DA3
Analogous
#6C66A3
Triadic
#A3667E
Triadic
#7EA366
Split comp.
#A36C66
Split comp.
#9DA366

Tints & Shades of #667EA3

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

#7C91B1
#8FA1BC
#A6B4C9
#B9C4D5
#CFD7E2
#E2E7EE

Shades

#566D8F
#495C79
#3B4B63
#303D50
#222C39
#151B23

Want a full 50-950 ramp with semantic roles? Generate design tokens from #667EA3.

How #667EA3 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#667EA3
Protanopia#7A7AA3
Protanomaly#737CA3
Deuteranopia#7777A3
Deuteranomaly#707AA3
Tritanopia#5E8383
Tritanomaly#618191
Achromatopsia#7D7D7D

Test a full palette in the color blindness simulator.

Using #667EA3 in Code

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

CSS custom property--color-667ea3: #667EA3;
CSS backgroundbackground-color: #667EA3;
Tailwind configcolors: { 'color-667ea3': '#667EA3' }
SwiftUIColor(red: 0.400, green: 0.494, blue: 0.639)
Android XML<color name="color_667ea3">#667EA3</color>
SVG fillfill="#667EA3"

More Blue Colors

#667EA3 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#667EA3 Frequently Asked Questions

What color is #667EA3?

#667EA3 is a mid-tone blue — rgb(102, 126, 163) in RGB and hsl(216, 25%, 52%) in HSL. It carries no registered color name of its own; the closest named color is Shadow Blue (#778BA5), which is clearly related but distinguishable side by side at a CIE76 distance of 8.29.

What is the RGB value of #667EA3?

#667EA3 is rgb(102, 126, 163) — red 102, green 126, and blue 163 on the 0-255 scale.

What is the CMYK value of #667EA3?

#667EA3 converts to approximately cmyk(37%, 23%, 0%, 36%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #667EA3 be black or white?

Black text is the more readable choice. #667EA3 scores 4.14:1 against white and 5.08:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #667EA3 as a CSS color keyword?

No. #667EA3 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 11.95, which is visibly different.

Open #667EA3 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.