#233C57#233C57

#233C57 is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.057 H 251.5°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#233C57
RGB	rgb(35, 60, 87)
HSL	hsl(211, 43%, 24%)
HSV	hsv(211, 60%, 34%)
CMYK	cmyk(59.8%, 31%, 0%, 65.9%)
CIE-LAB	lab(24.57, -0.52, -19.16)
CIE-LCH	lch(24.57, 19.17, 268.44°)
OKLab	oklab(34.92% -0.0181 -0.0538)
OKLCH	oklch(34.92% 0.057 251.5)
XYZ	xyz(4.0287, 4.2768, 9.6282)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C57 #573E23

analogous

#235657 #233C57 #242357

triadic

#233C57 #57233C #3C5723

tetradic

#233C57 #572356 #573E23 #235724

square

#233C57 #572356 #573E23 #235724

split-complementary

#233C57 #572423 #565723

monochromatic

#090F16 #111E2B #233C57 #355A83 #4678AE

Accessibility & contrast

On white

11.32

#233C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#233C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C57

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C57	#FFFFFF	#000000	##FFFFFF
##233C57	1.00	11.32	1.86	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313D58

Deuteranopia (green-blind)

#2A3856

Tritanopia (blue-blind)

#024245

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233c57;
/* rgb */ color: rgb(35, 60, 87);
/* oklch */ color: oklch(34.9% 0.057 251.5);

Tailwind

colors: {
  custom: {
    50: '#627186',
    500: '#233c57',
    950: '#000000',
  },
}

SCSS

$custom: #233c57;
$custom-light: #627186;
$custom-dark: #000000;

JSON

{
  "hex": "#233c57",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 87
  },
  "hsl": {
    "h": 211.154,
    "s": 42.623,
    "l": 23.922
  },
  "oklch": {
    "l": 0.34917,
    "c": 0.05679,
    "h": 251.5
  },
  "luminance": 0.04277
}

Semantic roles & 50–950 ramp

primary

#233C57

secondary

#8B6C4B

accent

#9655D2

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #233C57

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

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