#101437#101437

#101437 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.1% C 0.068 H 274.2°. Best body text is #FFFFFF at 17.84:1 contrast (WCAG AA passes).

Color values

HEX	#101437
RGB	rgb(16, 20, 55)
HSL	hsl(234, 55%, 14%)
HSV	hsv(234, 71%, 22%)
CMYK	cmyk(70.9%, 63.6%, 0%, 78.4%)
CIE-LAB	lab(8.01, 11.42, -23.53)
CIE-LCH	lch(8.01, 26.16, 295.89°)
OKLab	oklab(21.14% 0.0049 -0.0675)
OKLCH	oklch(21.14% 0.068 274.2)
XYZ	xyz(1.1532, 0.8862, 3.7240)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.92

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101437 #373310

analogous

#102837 #101437 #201037

triadic

#101437 #371014 #143710

tetradic

#101437 #371028 #373310 #103720

square

#101437 #371028 #373310 #103720

split-complementary

#101437 #372010 #283710

monochromatic

#070918 #070918 #101437 #1E2566 #2C3696

Accessibility & contrast

On white

17.84

#101437 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#101437 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101437

17.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101437	#FFFFFF	#000000	##FFFFFF
##101437	1.00	17.84	1.18	17.84
#FFFFFF	17.84	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011938

Deuteranopia (green-blind)

#001636

Tritanopia (blue-blind)

#001C23

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #101437;
/* rgb */ color: rgb(16, 20, 55);
/* oklch */ color: oklch(21.1% 0.068 274.2);

Tailwind

colors: {
  custom: {
    50: '#53516e',
    500: '#101437',
    950: '#000000',
  },
}

SCSS

$custom: #101437;
$custom-light: #53516e;
$custom-dark: #000000;

JSON

{
  "hex": "#101437",
  "rgb": {
    "r": 16,
    "g": 20,
    "b": 55
  },
  "hsl": {
    "h": 233.846,
    "s": 54.93,
    "l": 13.922
  },
  "oklch": {
    "l": 0.21139,
    "c": 0.06768,
    "h": 274.2
  },
  "luminance": 0.00886
}

Semantic roles & 50–950 ramp

primary

#101437

secondary

#716A32

accent

#CF4ADE

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #101437

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

Preview Lab → · Contrast checker → · Palette generator →