#12283B#12283B

#12283B is a dark, muted cyan. Relative luminance 0.020; OKLCH L 26.9% C 0.045 H 246.6°. Best body text is #FFFFFF at 15.08:1 contrast (WCAG AA passes).

Color values

HEX	#12283B
RGB	rgb(18, 40, 59)
HSL	hsl(208, 53%, 15%)
HSV	hsv(208, 69%, 23%)
CMYK	cmyk(69.5%, 32.2%, 0%, 76.9%)
CIE-LAB	lab(15.29, -1.64, -14.80)
CIE-LCH	lch(15.29, 14.89, 263.67°)
OKLab	oklab(26.88% -0.0181 -0.0416)
OKLCH	oklch(26.88% 0.045 246.6)
XYZ	xyz(1.7974, 1.9618, 4.4208)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12283B #3B2512

analogous

#123B3A #12283B #12133B

triadic

#12283B #3B1228 #283B12

tetradic

#12283B #3A123B #3B2512 #133B12

square

#12283B #3A123B #3B2512 #133B12

split-complementary

#12283B #3B1213 #3B3A12

monochromatic

#071017 #071017 #12283B #20486A #2F6899

Accessibility & contrast

On white

15.08

#12283B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#12283B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12283B

15.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12283B	#FFFFFF	#000000	##FFFFFF
##12283B	1.00	15.08	1.39	15.08
#FFFFFF	15.08	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20293C

Deuteranopia (green-blind)

#1A243B

Tritanopia (blue-blind)

#002D2F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #12283b;
/* rgb */ color: rgb(18, 40, 59);
/* oklch */ color: oklch(26.9% 0.045 246.6);

Tailwind

colors: {
  custom: {
    50: '#546171',
    500: '#12283b',
    950: '#000000',
  },
}

SCSS

$custom: #12283b;
$custom-light: #546171;
$custom-dark: #000000;

JSON

{
  "hex": "#12283b",
  "rgb": {
    "r": 18,
    "g": 40,
    "b": 59
  },
  "hsl": {
    "h": 207.805,
    "s": 53.247,
    "l": 15.098
  },
  "oklch": {
    "l": 0.26878,
    "c": 0.04539,
    "h": 246.6
  },
  "luminance": 0.01962
}

Semantic roles & 50–950 ramp

primary

#12283B

secondary

#745235

accent

#8F4BDD

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030507

muted

#78797A

Preview Lab

Preview with #12283B

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

Preview Lab → · Contrast checker → · Palette generator →