#101239#101239

#101239 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.9% C 0.074 H 275.7°. Best body text is #FFFFFF at 17.99:1 contrast (WCAG AA passes).

Color values

HEX	#101239
RGB	rgb(16, 18, 57)
HSL	hsl(237, 56%, 14%)
HSV	hsv(237, 72%, 22%)
CMYK	cmyk(71.9%, 68.4%, 0%, 77.6%)
CIE-LAB	lab(7.57, 13.79, -25.68)
CIE-LCH	lch(7.57, 29.15, 298.24°)
OKLab	oklab(20.87% 0.0073 -0.0739)
OKLCH	oklch(20.87% 0.074 275.7)
XYZ	xyz(1.1683, 0.8381, 3.9703)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 3.97

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101239 #393710

analogous

#102739 #101239 #231039

triadic

#101239 #391012 #123910

tetradic

#101239 #391027 #393710 #103923

square

#101239 #391027 #393710 #103923

split-complementary

#101239 #392310 #273910

monochromatic

#070818 #070818 #101239 #1D2169 #2B3099

Accessibility & contrast

On white

17.99

#101239 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#101239 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101239

17.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101239	#FFFFFF	#000000	##FFFFFF
##101239	1.00	17.99	1.17	17.99
#FFFFFF	17.99	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183A

Deuteranopia (green-blind)

#001538

Tritanopia (blue-blind)

#001B23

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #101239;
/* rgb */ color: rgb(16, 18, 57);
/* oklch */ color: oklch(20.9% 0.074 275.7);

Tailwind

colors: {
  custom: {
    50: '#544f70',
    500: '#101239',
    950: '#000000',
  },
}

SCSS

$custom: #101239;
$custom-light: #544f70;
$custom-dark: #000000;

JSON

{
  "hex": "#101239",
  "rgb": {
    "r": 16,
    "g": 18,
    "b": 57
  },
  "hsl": {
    "h": 237.073,
    "s": 56.164,
    "l": 14.314
  },
  "oklch": {
    "l": 0.20866,
    "c": 0.07425,
    "h": 275.7
  },
  "luminance": 0.00838
}

Semantic roles & 50–950 ramp

primary

#101239

secondary

#737032

accent

#D848DF

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #101239

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

Preview Lab → · Contrast checker → · Palette generator →