#101C4D#101C4D

#101C4D is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.092 H 268.5°. Best body text is #FFFFFF at 16.21:1 contrast (WCAG AA passes).

Color values

HEX	#101C4D
RGB	rgb(16, 28, 77)
HSL	hsl(228, 66%, 18%)
HSV	hsv(228, 79%, 30%)
CMYK	cmyk(79.2%, 63.6%, 0%, 69.8%)
CIE-LAB	lab(12.46, 14.64, -31.82)
CIE-LCH	lch(12.46, 35.02, 294.71°)
OKLab	oklab(25.09% -0.0025 -0.0917)
OKLCH	oklch(25.09% 0.092 268.5)
XYZ	xyz(1.9680, 1.4763, 7.2010)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.40

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C4D #4D4110

analogous

#103A4D #101C4D #22104D

triadic

#101C4D #4D101C #1C4D10

tetradic

#101C4D #4D103A #4D4110 #104D22

square

#101C4D #4D103A #4D4110 #104D22

split-complementary

#101C4D #4D2210 #3A4D10

monochromatic

#050919 #050A1A #101C4D #1B2E80 #2541B2

Accessibility & contrast

On white

16.21

#101C4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#101C4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C4D

16.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C4D	#FFFFFF	#000000	##FFFFFF
##101C4D	1.00	16.21	1.30	16.21
#FFFFFF	16.21	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234F

Deuteranopia (green-blind)

#001E4C

Tritanopia (blue-blind)

#002831

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #101c4d;
/* rgb */ color: rgb(16, 28, 77);
/* oklch */ color: oklch(25.1% 0.092 268.5);

Tailwind

colors: {
  custom: {
    50: '#58577f',
    500: '#101c4d',
    950: '#000000',
  },
}

SCSS

$custom: #101c4d;
$custom-light: #58577f;
$custom-dark: #000000;

JSON

{
  "hex": "#101c4d",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 77
  },
  "hsl": {
    "h": 228.197,
    "s": 65.591,
    "l": 18.235
  },
  "oklch": {
    "l": 0.25087,
    "c": 0.09178,
    "h": 268.5
  },
  "luminance": 0.01476
}

Semantic roles & 50–950 ramp

primary

#101C4D

secondary

#877632

accent

#C73FE9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101C4D

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

Preview Lab → · Contrast checker → · Palette generator →