#12243E#12243E

#12243E is a dark, muted blue. Relative luminance 0.017; OKLCH L 26.0% C 0.055 H 257.6°. Best body text is #FFFFFF at 15.58:1 contrast (WCAG AA passes).

Color values

HEX	#12243E
RGB	rgb(18, 36, 62)
HSL	hsl(215, 55%, 16%)
HSV	hsv(215, 71%, 24%)
CMYK	cmyk(71%, 41.9%, 0%, 75.7%)
CIE-LAB	lab(14.05, 2.50, -18.84)
CIE-LCH	lch(14.05, 19.01, 277.56°)
OKLab	oklab(25.97% -0.0117 -0.0534)
OKLCH	oklch(25.97% 0.055 257.6)
XYZ	xyz(1.7495, 1.7380, 4.7998)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12243E #3E2C12

analogous

#123A3E #12243E #16123E

triadic

#12243E #3E1224 #243E12

tetradic

#12243E #3E123A #3E2C12 #123E16

square

#12243E #3E123A #3E2C12 #123E16

split-complementary

#12243E #3E1612 #3A3E12

monochromatic

#070E18 #070E18 #12243E #20406D #2E5B9D

Accessibility & contrast

On white

15.58

#12243E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#12243E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12243E

15.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12243E	#FFFFFF	#000000	##FFFFFF
##12243E	1.00	15.58	1.35	15.58
#FFFFFF	15.58	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19263F

Deuteranopia (green-blind)

#13223D

Tritanopia (blue-blind)

#002A2E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #12243e;
/* rgb */ color: rgb(18, 36, 62);
/* oklch */ color: oklch(26.0% 0.055 257.6);

Tailwind

colors: {
  custom: {
    50: '#555e73',
    500: '#12243e',
    950: '#000000',
  },
}

SCSS

$custom: #12243e;
$custom-light: #555e73;
$custom-dark: #000000;

JSON

{
  "hex": "#12243e",
  "rgb": {
    "r": 18,
    "g": 36,
    "b": 62
  },
  "hsl": {
    "h": 215.455,
    "s": 55,
    "l": 15.686
  },
  "oklch": {
    "l": 0.25966,
    "c": 0.05472,
    "h": 257.6
  },
  "luminance": 0.01738
}

Semantic roles & 50–950 ramp

primary

#12243E

secondary

#775C35

accent

#A149DE

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #12243E

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

Preview Lab → · Contrast checker → · Palette generator →