#123143#123143

#123143 is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.9% C 0.049 H 237.1°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#123143
RGB	rgb(18, 49, 67)
HSL	hsl(202, 58%, 17%)
HSV	hsv(202, 73%, 26%)
CMYK	cmyk(73.1%, 26.9%, 0%, 73.7%)
CIE-LAB	lab(18.93, -4.68, -14.65)
CIE-LCH	lch(18.93, 15.37, 252.28°)
OKLab	oklab(29.9% -0.0266 -0.0411)
OKLCH	oklch(29.9% 0.049 237.1)
XYZ	xyz(2.3605, 2.7302, 5.7117)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123143 #432412

analogous

#12433D #123143 #121943

triadic

#123143 #431231 #314312

tetradic

#123143 #3D1243 #432412 #194312

square

#123143 #3D1243 #432412 #194312

split-complementary

#123143 #431219 #433D12

monochromatic

#061218 #061218 #123143 #1F5473 #2C78A3

Accessibility & contrast

On white

13.58

#123143 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#123143 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123143

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123143	#FFFFFF	#000000	##FFFFFF
##123143	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293144

Deuteranopia (green-blind)

#222C43

Tritanopia (blue-blind)

#003637

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #123143;
/* rgb */ color: rgb(18, 49, 67);
/* oklch */ color: oklch(29.9% 0.049 237.1);

Tailwind

colors: {
  custom: {
    50: '#566977',
    500: '#123143',
    950: '#000000',
  },
}

SCSS

$custom: #123143;
$custom-light: #566977;
$custom-dark: #000000;

JSON

{
  "hex": "#123143",
  "rgb": {
    "r": 18,
    "g": 49,
    "b": 67
  },
  "hsl": {
    "h": 202.041,
    "s": 57.647,
    "l": 16.667
  },
  "oklch": {
    "l": 0.299,
    "c": 0.04898,
    "h": 237.1
  },
  "luminance": 0.0273
}

Semantic roles & 50–950 ramp

primary

#123143

secondary

#7C4F35

accent

#7F47E1

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #123143

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

Preview Lab → · Contrast checker → · Palette generator →