#12437F#12437F

#12437F is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.6% C 0.114 H 256.0°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#12437F
RGB	rgb(18, 67, 127)
HSL	hsl(213, 75%, 28%)
HSV	hsv(213, 86%, 50%)
CMYK	cmyk(85.8%, 47.2%, 0%, 50.2%)
CIE-LAB	lab(28.58, 7.89, -38.42)
CIE-LCH	lch(28.58, 39.22, 281.61°)
OKLab	oklab(38.64% -0.0275 -0.1103)
OKLCH	oklch(38.64% 0.114 256)
XYZ	xyz(6.0859, 5.6745, 20.8491)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12437F #7F4E12

analogous

#12797F #12437F #18127F

triadic

#12437F #7F1243 #437F12

tetradic

#12437F #7F1279 #7F4E12 #127F18

square

#12437F #7F1279 #7F4E12 #127F18

split-complementary

#12437F #7F1812 #797F12

monochromatic

#040E1B #0A2749 #12437F #1A5FB5 #2B7CE1

Accessibility & contrast

On white

9.84

#12437F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#12437F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12437F

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12437F	#FFFFFF	#000000	##FFFFFF
##12437F	1.00	9.84	2.14	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234981

Deuteranopia (green-blind)

#073F7E

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #12437f;
/* rgb */ color: rgb(18, 67, 127);
/* oklch */ color: oklch(38.6% 0.114 256.0);

Tailwind

colors: {
  custom: {
    50: '#6576a4',
    500: '#12437f',
    950: '#000000',
  },
}

SCSS

$custom: #12437f;
$custom-light: #6576a4;
$custom-dark: #000000;

JSON

{
  "hex": "#12437f",
  "rgb": {
    "r": 18,
    "g": 67,
    "b": 127
  },
  "hsl": {
    "h": 213.028,
    "s": 75.172,
    "l": 28.431
  },
  "oklch": {
    "l": 0.38644,
    "c": 0.1137,
    "h": 256
  },
  "luminance": 0.05675
}

Semantic roles & 50–950 ramp

primary

#12437F

secondary

#B57D38

accent

#9D36F2

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #12437F

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

Preview Lab → · Contrast checker → · Palette generator →