#123042#123042

#123042 is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.6% C 0.048 H 237.9°. Best body text is #FFFFFF at 13.75:1 contrast (WCAG AA passes).

Color values

HEX	#123042
RGB	rgb(18, 48, 66)
HSL	hsl(203, 57%, 16%)
HSV	hsv(203, 73%, 26%)
CMYK	cmyk(72.7%, 27.3%, 0%, 74.1%)
CIE-LAB	lab(18.52, -4.40, -14.60)
CIE-LCH	lch(18.52, 15.25, 253.23°)
OKLab	oklab(29.56% -0.0258 -0.041)
OKLCH	oklch(29.56% 0.048 237.9)
XYZ	xyz(2.2894, 2.6356, 5.5413)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123042 #422412

analogous

#12423C #123042 #121842

triadic

#123042 #421230 #304212

tetradic

#123042 #3C1242 #422412 #184212

square

#123042 #3C1242 #422412 #184212

split-complementary

#123042 #421218 #423C12

monochromatic

#071118 #071118 #123042 #1F5372 #2C76A2

Accessibility & contrast

On white

13.75

#123042 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#123042 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123042

13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123042	#FFFFFF	#000000	##FFFFFF
##123042	1.00	13.75	1.53	13.75
#FFFFFF	13.75	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283043

Deuteranopia (green-blind)

#212B42

Tritanopia (blue-blind)

#003536

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #123042;
/* rgb */ color: rgb(18, 48, 66);
/* oklch */ color: oklch(29.6% 0.048 237.9);

Tailwind

colors: {
  custom: {
    50: '#566876',
    500: '#123042',
    950: '#000000',
  },
}

SCSS

$custom: #123042;
$custom-light: #566876;
$custom-dark: #000000;

JSON

{
  "hex": "#123042",
  "rgb": {
    "r": 18,
    "g": 48,
    "b": 66
  },
  "hsl": {
    "h": 202.5,
    "s": 57.143,
    "l": 16.471
  },
  "oklch": {
    "l": 0.29559,
    "c": 0.04841,
    "h": 237.9
  },
  "luminance": 0.02636
}

Semantic roles & 50–950 ramp

primary

#123042

secondary

#7B4F35

accent

#8147E0

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #123042

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

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