#233D57#233D57

#233D57 is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.2% C 0.056 H 249.7°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#233D57
RGB	rgb(35, 61, 87)
HSL	hsl(210, 43%, 24%)
HSV	hsv(210, 60%, 34%)
CMYK	cmyk(59.8%, 29.9%, 0%, 65.9%)
CIE-LAB	lab(24.90, -1.19, -18.64)
CIE-LCH	lch(24.90, 18.68, 266.34°)
OKLab	oklab(35.18% -0.0194 -0.0523)
OKLCH	oklch(35.18% 0.056 249.7)
XYZ	xyz(4.0816, 4.3826, 9.6458)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D57 #573D23

analogous

#235757 #233D57 #232357

triadic

#233D57 #57233D #3D5723

tetradic

#233D57 #572357 #573D23 #235723

square

#233D57 #572357 #573D23 #235723

split-complementary

#233D57 #572323 #575723

monochromatic

#090F16 #111E2B #233D57 #355C83 #467AAE

Accessibility & contrast

On white

11.19

#233D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#233D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D57

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D57	#FFFFFF	#000000	##FFFFFF
##233D57	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323E58

Deuteranopia (green-blind)

#2B3956

Tritanopia (blue-blind)

#024346

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #233d57;
/* rgb */ color: rgb(35, 61, 87);
/* oklch */ color: oklch(35.2% 0.056 249.7);

Tailwind

colors: {
  custom: {
    50: '#627286',
    500: '#233d57',
    950: '#000000',
  },
}

SCSS

$custom: #233d57;
$custom-light: #627286;
$custom-dark: #000000;

JSON

{
  "hex": "#233d57",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 87
  },
  "hsl": {
    "h": 210,
    "s": 42.623,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35178,
    "c": 0.05581,
    "h": 249.7
  },
  "luminance": 0.04383
}

Semantic roles & 50–950 ramp

primary

#233D57

secondary

#8B6B4B

accent

#9455D2

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #233D57

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

Preview Lab → · Contrast checker → · Palette generator →