#10177E#10177E

#10177E is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.166 H 268.3°. Best body text is #FFFFFF at 14.52:1 contrast (WCAG AA passes).

Color values

HEX	#10177E
RGB	rgb(16, 23, 126)
HSL	hsl(236, 77%, 28%)
HSV	hsv(236, 87%, 49%)
CMYK	cmyk(87.3%, 81.7%, 0%, 50.6%)
CIE-LAB	lab(16.64, 37.24, -57.29)
CIE-LCH	lch(16.64, 68.33, 303.02°)
OKLab	oklab(29.73% -0.0051 -0.166)
OKLCH	oklch(29.73% 0.166 268.3)
XYZ	xyz(4.2847, 2.2288, 19.9390)
Luminance	0.0223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10177E #7E7710

analogous

#104E7E #10177E #40107E

triadic

#10177E #7E1017 #177E10

tetradic

#10177E #7E104E #7E7710 #107E40

square

#10177E #7E104E #7E7710 #107E40

split-complementary

#10177E #7E4010 #4E7E10

monochromatic

#03051B #090D48 #10177E #1721B4 #2531E3

Accessibility & contrast

On white

14.52

#10177E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#10177E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10177E

14.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10177E	#FFFFFF	#000000	##FFFFFF
##10177E	1.00	14.52	1.45	14.52
#FFFFFF	14.52	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F81

Deuteranopia (green-blind)

#00237C

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #10177e;
/* rgb */ color: rgb(16, 23, 126);
/* oklch */ color: oklch(29.7% 0.166 268.3);

Tailwind

colors: {
  custom: {
    50: '#6856a5',
    500: '#10177e',
    950: '#000000',
  },
}

SCSS

$custom: #10177e;
$custom-light: #6856a5;
$custom-dark: #000000;

JSON

{
  "hex": "#10177e",
  "rgb": {
    "r": 16,
    "g": 23,
    "b": 126
  },
  "hsl": {
    "h": 236.182,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.29728,
    "c": 0.16607,
    "h": 268.3
  },
  "luminance": 0.02229
}

Semantic roles & 50–950 ramp

primary

#10177E

secondary

#B4AC36

accent

#E834F4

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #10177E

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

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