#101E4B#101E4B

#101E4B is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.086 H 267.0°. Best body text is #FFFFFF at 16.04:1 contrast (WCAG AA passes).

Color values

HEX	#101E4B
RGB	rgb(16, 30, 75)
HSL	hsl(226, 65%, 18%)
HSV	hsv(226, 79%, 29%)
CMYK	cmyk(78.7%, 60%, 0%, 70.6%)
CIE-LAB	lab(12.90, 12.25, -29.72)
CIE-LCH	lch(12.90, 32.14, 292.40°)
OKLab	oklab(25.37% -0.0044 -0.0855)
OKLCH	oklch(25.37% 0.086 267)
XYZ	xyz(1.9475, 1.5465, 6.8511)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101E4B #4B3D10

analogous

#103B4B #101E4B #20104B

triadic

#101E4B #4B101E #1E4B10

tetradic

#101E4B #4B103B #4B3D10 #104B20

square

#101E4B #4B103B #4B3D10 #104B20

split-complementary

#101E4B #4B2010 #3B4B10

monochromatic

#050A19 #050A19 #101E4B #1B327D #2646B0

Accessibility & contrast

On white

16.04

#101E4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#101E4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101E4B

16.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101E4B	#FFFFFF	#000000	##FFFFFF
##101E4B	1.00	16.04	1.31	16.04
#FFFFFF	16.04	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00244D

Deuteranopia (green-blind)

#001F4A

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101e4b;
/* rgb */ color: rgb(16, 30, 75);
/* oklch */ color: oklch(25.4% 0.086 267.0);

Tailwind

colors: {
  custom: {
    50: '#58597e',
    500: '#101e4b',
    950: '#000000',
  },
}

SCSS

$custom: #101e4b;
$custom-light: #58597e;
$custom-dark: #000000;

JSON

{
  "hex": "#101e4b",
  "rgb": {
    "r": 16,
    "g": 30,
    "b": 75
  },
  "hsl": {
    "h": 225.763,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.25365,
    "c": 0.08567,
    "h": 267
  },
  "luminance": 0.01547
}

Semantic roles & 50–950 ramp

primary

#101E4B

secondary

#857132

accent

#C040E8

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101E4B

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

Preview Lab → · Contrast checker → · Palette generator →