#101D4C#101D4C

#101D4C is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.2% C 0.089 H 267.8°. Best body text is #FFFFFF at 16.13:1 contrast (WCAG AA passes).

Color values

HEX	#101D4C
RGB	rgb(16, 29, 76)
HSL	hsl(227, 65%, 18%)
HSV	hsv(227, 79%, 30%)
CMYK	cmyk(78.9%, 61.8%, 0%, 70.2%)
CIE-LAB	lab(12.67, 13.45, -30.77)
CIE-LCH	lch(12.67, 33.58, 293.60°)
OKLab	oklab(25.22% -0.0034 -0.0887)
OKLCH	oklch(25.22% 0.089 267.8)
XYZ	xyz(1.9571, 1.5105, 7.0245)
Luminance	0.0151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101D4C #4C3F10

analogous

#103B4C #101D4C #21104C

triadic

#101D4C #4C101D #1D4C10

tetradic

#101D4C #4C103B #4C3F10 #104C21

square

#101D4C #4C103B #4C3F10 #104C21

split-complementary

#101D4C #4C2110 #3B4C10

monochromatic

#050A19 #050A19 #101D4C #1B307F #2544B1

Accessibility & contrast

On white

16.13

#101D4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#101D4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101D4C

16.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101D4C	#FFFFFF	#000000	##FFFFFF
##101D4C	1.00	16.13	1.30	16.13
#FFFFFF	16.13	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00244E

Deuteranopia (green-blind)

#001E4B

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101d4c;
/* rgb */ color: rgb(16, 29, 76);
/* oklch */ color: oklch(25.2% 0.089 267.8);

Tailwind

colors: {
  custom: {
    50: '#58587e',
    500: '#101d4c',
    950: '#000000',
  },
}

SCSS

$custom: #101d4c;
$custom-light: #58587e;
$custom-dark: #000000;

JSON

{
  "hex": "#101d4c",
  "rgb": {
    "r": 16,
    "g": 29,
    "b": 76
  },
  "hsl": {
    "h": 227,
    "s": 65.217,
    "l": 18.039
  },
  "oklch": {
    "l": 0.25222,
    "c": 0.08874,
    "h": 267.8
  },
  "luminance": 0.01511
}

Semantic roles & 50–950 ramp

primary

#101D4C

secondary

#867432

accent

#C440E8

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101D4C

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

Preview Lab → · Contrast checker → · Palette generator →