#101037#101037

#101037 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.2% C 0.074 H 277.5°. Best body text is #FFFFFF at 18.24:1 contrast (WCAG AA passes).

Color values

HEX	#101037
RGB	rgb(16, 16, 55)
HSL	hsl(240, 55%, 14%)
HSV	hsv(240, 71%, 22%)
CMYK	cmyk(70.9%, 70.9%, 0%, 78.4%)
CIE-LAB	lab(6.83, 14.28, -25.43)
CIE-LCH	lch(6.83, 29.16, 299.31°)
OKLab	oklab(20.22% 0.0097 -0.0734)
OKLCH	oklch(20.22% 0.074 277.5)
XYZ	xyz(1.0883, 0.7565, 3.7024)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101037 #373710

analogous

#102437 #101037 #241037

triadic

#101037 #371010 #103710

tetradic

#101037 #371024 #373710 #103724

square

#101037 #371024 #373710 #103724

split-complementary

#101037 #372410 #243710

monochromatic

#070718 #070718 #101037 #1E1E66 #2C2C96

Accessibility & contrast

On white

18.24

#101037 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#101037 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101037

18.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101037	#FFFFFF	#000000	##FFFFFF
##101037	1.00	18.24	1.15	18.24
#FFFFFF	18.24	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001738

Deuteranopia (green-blind)

#001336

Tritanopia (blue-blind)

#001A21

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #101037;
/* rgb */ color: rgb(16, 16, 55);
/* oklch */ color: oklch(20.2% 0.074 277.5);

Tailwind

colors: {
  custom: {
    50: '#534e6e',
    500: '#101037',
    950: '#000000',
  },
}

SCSS

$custom: #101037;
$custom-light: #534e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#101037",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 55
  },
  "hsl": {
    "h": 240,
    "s": 54.93,
    "l": 13.922
  },
  "oklch": {
    "l": 0.20222,
    "c": 0.07406,
    "h": 277.5
  },
  "luminance": 0.00757
}

Semantic roles & 50–950 ramp

primary

#101037

secondary

#717132

accent

#DE4ADE

background

#F4F4F6

surface

#E8E7EC

border

#C4C3C7

text

#030107

muted

#78777A

Preview Lab

Preview with #101037

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

Preview Lab → · Contrast checker → · Palette generator →