#6381AB Color
#6381AB is rgb(99, 129, 171) in RGB, hsl(215, 30%, 53%) in HSL, and about cmyk(42%, 25%, 0%, 33%) in CMYK. It has no registered color name of its own — the closest is Glaucous (#6082B6), clearly related but distinguishable side by side at ΔE 5.68. Black text is the more readable choice on this background.
#6381ABrgb(99, 129, 171)hsl(215, 30%, 53%)hsv(215, 42%, 67%)cmyk(42%, 25%, 0%, 33%)oklch(59.7% 0.073 256.9)lab(52.93% -2.52 -26.07)lch(52.93% 26.19 264.48)What #6381AB 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 #6381AB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.
Browse the full index of named colors A-Z or every blue in the library.
#6381AB Channel Values
How #6381AB breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.
| Model | Channels | Notes |
|---|---|---|
| RGB | R 99 · G 129 · B 171 | 8-bit channels as sent to the display |
| HSL | H 215° · S 30% · L 53% | Easiest model for building lighter and darker variants |
| HSV | H 215° · S 42% · V 67% | Matches the picker in most design tools |
| CMYK | C 42% · M 25% · Y 0% · K 33% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 3.99:1 vs white · 5.26:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #6381AB 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.
Need a specific ratio against another background? Open #6381AB in the contrast checker.
Colors That Go With #6381AB
Pairings derived from color-wheel relationships. The complementary color sits opposite #6381AB; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.
Tints & Shades of #6381AB
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.
Want a full 50-950 ramp with semantic roles? Generate design tokens from #6381AB.
How #6381AB 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.
#6381AB#7D7DAB#737EAB#7878AB#707CAB#598787#5D8597#7F7F7FUsing #6381AB in Code
Copy-ready declarations for the places this color usually ends up.
--color-6381ab: #6381AB;background-color: #6381AB;colors: { 'color-6381ab': '#6381AB' }Color(red: 0.388, green: 0.506, blue: 0.671)<color name="color_6381ab">#6381AB</color>fill="#6381AB"More Blue Colors
#6381AB sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.
#6381AB Frequently Asked Questions
What color is #6381AB?
#6381AB is a mid-tone blue — rgb(99, 129, 171) in RGB and hsl(215, 30%, 53%) in HSL. It carries no registered color name of its own; the closest named color is Glaucous (#6082B6), which is clearly related but distinguishable side by side at a CIE76 distance of 5.68.
What is the RGB value of #6381AB?
#6381AB is rgb(99, 129, 171) — red 99, green 129, and blue 171 on the 0-255 scale.
What is the CMYK value of #6381AB?
#6381AB converts to approximately cmyk(42%, 25%, 0%, 33%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #6381AB be black or white?
Black text is the more readable choice. #6381AB scores 3.99:1 against white and 5.26:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #6381AB as a CSS color keyword?
No. #6381AB 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 8.99, which is clearly related but distinguishable side by side.
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Keep exploring: every blue in the color library, the guide to shades of blue, or the full color library.