#101C40#101C40

#101C40 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.9% C 0.070 H 267.1°. Best body text is #FFFFFF at 16.64:1 contrast (WCAG AA passes).

Color values

HEX	#101C40
RGB	rgb(16, 28, 64)
HSL	hsl(225, 60%, 16%)
HSV	hsv(225, 75%, 25%)
CMYK	cmyk(75%, 56.2%, 0%, 74.9%)
CIE-LAB	lab(11.35, 9.02, -24.56)
CIE-LCH	lch(11.35, 26.16, 290.15°)
OKLab	oklab(23.9% -0.0036 -0.0704)
OKLCH	oklch(23.9% 0.071 267.1)
XYZ	xyz(1.5540, 1.3107, 5.0206)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C40 #403410

analogous

#103440 #101C40 #1C1040

triadic

#101C40 #40101C #1C4010

tetradic

#101C40 #401034 #403410 #10401C

square

#101C40 #401034 #403410 #10401C

split-complementary

#101C40 #401C10 #344010

monochromatic

#060B18 #060B18 #101C40 #1C3171 #2847A2

Accessibility & contrast

On white

16.64

#101C40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#101C40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C40

16.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C40	#FFFFFF	#000000	##FFFFFF
##101C40	1.00	16.64	1.26	16.64
#FFFFFF	16.64	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#082041

Deuteranopia (green-blind)

#011C3F

Tritanopia (blue-blind)

#00242A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101c40;
/* rgb */ color: rgb(16, 28, 64);
/* oklch */ color: oklch(23.9% 0.070 267.1);

Tailwind

colors: {
  custom: {
    50: '#555775',
    500: '#101c40',
    950: '#000000',
  },
}

SCSS

$custom: #101c40;
$custom-light: #555775;
$custom-dark: #000000;

JSON

{
  "hex": "#101c40",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 64
  },
  "hsl": {
    "h": 225,
    "s": 60,
    "l": 15.686
  },
  "oklch": {
    "l": 0.23902,
    "c": 0.0705,
    "h": 267.1
  },
  "luminance": 0.01311
}

Semantic roles & 50–950 ramp

primary

#101C40

secondary

#7A6832

accent

#BC45E3

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #101C40

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

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