#123D55#123D55

#123D55 is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.063 H 237.3°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#123D55
RGB	rgb(18, 61, 85)
HSL	hsl(201, 65%, 20%)
HSV	hsv(201, 79%, 33%)
CMYK	cmyk(78.8%, 28.2%, 0%, 66.7%)
CIE-LAB	lab(24.07, -5.47, -18.68)
CIE-LCH	lch(24.07, 19.46, 253.69°)
OKLab	oklab(34.29% -0.0338 -0.0527)
OKLCH	oklch(34.29% 0.063 237.3)
XYZ	xyz(3.5572, 4.1216, 9.2006)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123D55 #552A12

analogous

#12554C #123D55 #121B55

triadic

#123D55 #55123D #3D5512

tetradic

#123D55 #4C1255 #552A12 #1B5512

square

#123D55 #4C1255 #552A12 #1B5512

split-complementary

#123D55 #55121B #554C12

monochromatic

#051219 #071922 #123D55 #1D6188 #2785BA

Accessibility & contrast

On white

11.51

#123D55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#123D55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123D55

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123D55	#FFFFFF	#000000	##FFFFFF
##123D55	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323D56

Deuteranopia (green-blind)

#283655

Tritanopia (blue-blind)

#004345

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #123d55;
/* rgb */ color: rgb(18, 61, 85);
/* oklch */ color: oklch(34.3% 0.063 237.3);

Tailwind

colors: {
  custom: {
    50: '#5a7285',
    500: '#123d55',
    950: '#000000',
  },
}

SCSS

$custom: #123d55;
$custom-light: #5a7285;
$custom-dark: #000000;

JSON

{
  "hex": "#123d55",
  "rgb": {
    "r": 18,
    "g": 61,
    "b": 85
  },
  "hsl": {
    "h": 201.493,
    "s": 65.049,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34288,
    "c": 0.06256,
    "h": 237.3
  },
  "luminance": 0.04122
}

Semantic roles & 50–950 ramp

primary

#123D55

secondary

#8E5535

accent

#7C40E8

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #123D55

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

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