#121237#121237

#121237 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.8% C 0.070 H 278.4°. Best body text is #FFFFFF at 17.99:1 contrast (WCAG AA passes).

Color values

HEX	#121237
RGB	rgb(18, 18, 55)
HSL	hsl(240, 51%, 14%)
HSV	hsv(240, 67%, 22%)
CMYK	cmyk(67.3%, 67.3%, 0%, 78.4%)
CIE-LAB	lab(7.56, 13.40, -24.24)
CIE-LCH	lch(7.56, 27.70, 298.93°)
OKLab	oklab(20.85% 0.0103 -0.0696)
OKLCH	oklch(20.85% 0.07 278.4)
XYZ	xyz(1.1551, 0.8370, 3.7144)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.48

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121237 #373712

analogous

#122537 #121237 #251237

triadic

#121237 #371212 #123712

tetradic

#121237 #371225 #373712 #123725

square

#121237 #371225 #373712 #123725

split-complementary

#121237 #372512 #253712

monochromatic

#080817 #080817 #121237 #212165 #303093

Accessibility & contrast

On white

17.99

#121237 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#121237 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121237

17.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121237	#FFFFFF	#000000	##FFFFFF
##121237	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)

#001838

Deuteranopia (green-blind)

#001536

Tritanopia (blue-blind)

#011B22

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #121237;
/* rgb */ color: rgb(18, 18, 55);
/* oklch */ color: oklch(20.8% 0.070 278.4);

Tailwind

colors: {
  custom: {
    50: '#544f6e',
    500: '#121237',
    950: '#000000',
  },
}

SCSS

$custom: #121237;
$custom-light: #544f6e;
$custom-dark: #000000;

JSON

{
  "hex": "#121237",
  "rgb": {
    "r": 18,
    "g": 18,
    "b": 55
  },
  "hsl": {
    "h": 240,
    "s": 50.685,
    "l": 14.314
  },
  "oklch": {
    "l": 0.20845,
    "c": 0.07034,
    "h": 278.4
  },
  "luminance": 0.00837
}

Semantic roles & 50–950 ramp

primary

#121237

secondary

#707035

accent

#DA4EDA

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #121237

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

Preview Lab → · Contrast checker → · Palette generator →