#101D4E#101D4E

#101D4E is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.092 H 267.9°. Best body text is #FFFFFF at 16.06:1 contrast (WCAG AA passes).

Color values

HEX	#101D4E
RGB	rgb(16, 29, 78)
HSL	hsl(227, 66%, 18%)
HSV	hsv(227, 79%, 31%)
CMYK	cmyk(79.5%, 62.8%, 0%, 69.4%)
CIE-LAB	lab(12.85, 14.31, -31.86)
CIE-LCH	lch(12.85, 34.93, 294.19°)
OKLab	oklab(25.41% -0.0033 -0.0919)
OKLCH	oklch(25.41% 0.092 267.9)
XYZ	xyz(2.0277, 1.5387, 7.3964)
Luminance	0.0154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.72

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101D4E #4E4110

analogous

#103C4E #101D4E #22104E

triadic

#101D4E #4E101D #1D4E10

tetradic

#101D4E #4E103C #4E4110 #104E22

square

#101D4E #4E103C #4E4110 #104E22

split-complementary

#101D4E #4E2210 #3C4E10

monochromatic

#050919 #060A1B #101D4E #1A3081 #2543B4

Accessibility & contrast

On white

16.06

#101D4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#101D4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101D4E

16.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101D4E	#FFFFFF	#000000	##FFFFFF
##101D4E	1.00	16.06	1.31	16.06
#FFFFFF	16.06	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002450

Deuteranopia (green-blind)

#001E4D

Tritanopia (blue-blind)

#002932

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101d4e;
/* rgb */ color: rgb(16, 29, 78);
/* oklch */ color: oklch(25.4% 0.092 267.9);

Tailwind

colors: {
  custom: {
    50: '#595880',
    500: '#101d4e',
    950: '#000000',
  },
}

SCSS

$custom: #101d4e;
$custom-light: #595880;
$custom-dark: #000000;

JSON

{
  "hex": "#101d4e",
  "rgb": {
    "r": 16,
    "g": 29,
    "b": 78
  },
  "hsl": {
    "h": 227.419,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.25412,
    "c": 0.09192,
    "h": 267.9
  },
  "luminance": 0.01539
}

Semantic roles & 50–950 ramp

primary

#101D4E

secondary

#887632

accent

#C53FE9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101D4E

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

Preview Lab → · Contrast checker → · Palette generator →