#10638D#10638D

#10638D is a mid, moderate cyan. Relative luminance 0.110; OKLCH L 47.5% C 0.099 H 237.9°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#10638D
RGB	rgb(16, 99, 141)
HSL	hsl(200, 80%, 31%)
HSV	hsv(200, 89%, 55%)
CMYK	cmyk(88.7%, 29.8%, 0%, 44.7%)
CIE-LAB	lab(39.51, -7.36, -29.65)
CIE-LCH	lch(39.51, 30.55, 256.06°)
OKLab	oklab(47.48% -0.0528 -0.084)
OKLCH	oklch(47.48% 0.099 237.9)
XYZ	xyz(9.4813, 10.9557, 26.8091)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10638D #8D3A10

analogous

#108D78 #10638D #10248D

triadic

#10638D #8D1063 #638D10

tetradic

#10638D #78108D #8D3A10 #248D10

square

#10638D #78108D #8D3A10 #248D10

split-complementary

#10638D #8D1024 #8D7810

monochromatic

#04161F #0A3C56 #10638D #168AC4 #30AAE7

Accessibility & contrast

On white

6.58

#10638D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#10638D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #10638D

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10638D	#FFFFFF	#000000	##FFFFFF
##10638D	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F638F

Deuteranopia (green-blind)

#3E588C

Tritanopia (blue-blind)

#006E72

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #10638d;
/* rgb */ color: rgb(16, 99, 141);
/* oklch */ color: oklch(47.5% 0.099 237.9);

Tailwind

colors: {
  custom: {
    50: '#688fae',
    500: '#10638d',
    950: '#000000',
  },
}

SCSS

$custom: #10638d;
$custom-light: #688fae;
$custom-dark: #000000;

JSON

{
  "hex": "#10638d",
  "rgb": {
    "r": 16,
    "g": 99,
    "b": 141
  },
  "hsl": {
    "h": 200.16,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.47484,
    "c": 0.09924,
    "h": 237.9
  },
  "luminance": 0.10957
}

Semantic roles & 50–950 ramp

primary

#10638D

secondary

#C26637

accent

#7432F6

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C10

muted

#7A7D7F

Preview Lab

Preview with #10638D

Body copy rendered with the generated semantic roles for this colour.

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