#101237#101237

#101237 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.071 H 275.9°. Best body text is #FFFFFF at 18.04:1 contrast (WCAG AA passes).

Color values

HEX	#101237
RGB	rgb(16, 18, 55)
HSL	hsl(237, 55%, 14%)
HSV	hsv(237, 71%, 22%)
CMYK	cmyk(70.9%, 67.3%, 0%, 78.4%)
CIE-LAB	lab(7.39, 12.93, -24.52)
CIE-LCH	lch(7.39, 27.72, 297.79°)
OKLab	oklab(20.67% 0.0073 -0.0705)
OKLCH	oklch(20.67% 0.071 275.9)
XYZ	xyz(1.1194, 0.8185, 3.7127)
Luminance	0.0082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.27

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101237 #373510

analogous

#102637 #101237 #221037

triadic

#101237 #371012 #123710

tetradic

#101237 #371026 #373510 #103722

square

#101237 #371026 #373510 #103722

split-complementary

#101237 #372210 #263710

monochromatic

#070818 #070818 #101237 #1E2266 #2C3196

Accessibility & contrast

On white

18.04

#101237 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#101237 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101237

18.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101237	#FFFFFF	#000000	##FFFFFF
##101237	1.00	18.04	1.16	18.04
#FFFFFF	18.04	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001838

Deuteranopia (green-blind)

#001536

Tritanopia (blue-blind)

#001B22

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #101237;
/* rgb */ color: rgb(16, 18, 55);
/* oklch */ color: oklch(20.7% 0.071 275.9);

Tailwind

colors: {
  custom: {
    50: '#534f6e',
    500: '#101237',
    950: '#000000',
  },
}

SCSS

$custom: #101237;
$custom-light: #534f6e;
$custom-dark: #000000;

JSON

{
  "hex": "#101237",
  "rgb": {
    "r": 16,
    "g": 18,
    "b": 55
  },
  "hsl": {
    "h": 236.923,
    "s": 54.93,
    "l": 13.922
  },
  "oklch": {
    "l": 0.2067,
    "c": 0.0709,
    "h": 275.9
  },
  "luminance": 0.00819
}

Semantic roles & 50–950 ramp

primary

#101237

secondary

#716D32

accent

#D74ADE

background

#F4F4F6

surface

#E8E7EC

border

#C4C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #101237

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

Preview Lab → · Contrast checker → · Palette generator →