#233B59#233B59

#233B59 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.8% C 0.061 H 254.7°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#233B59
RGB	rgb(35, 59, 89)
HSL	hsl(213, 44%, 24%)
HSV	hsv(213, 61%, 35%)
CMYK	cmyk(60.7%, 33.7%, 0%, 65.1%)
CIE-LAB	lab(24.34, 0.89, -20.82)
CIE-LCH	lch(24.34, 20.84, 272.45°)
OKLab	oklab(34.78% -0.0161 -0.0587)
OKLCH	oklch(34.78% 0.061 254.7)
XYZ	xyz(4.0596, 4.2062, 10.0472)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B59 #594123

analogous

#235659 #233B59 #262359

triadic

#233B59 #59233B #3B5923

tetradic

#233B59 #592356 #594123 #235926

square

#233B59 #592356 #594123 #235926

split-complementary

#233B59 #592623 #565923

monochromatic

#090F16 #121E2D #233B59 #345885 #4675B1

Accessibility & contrast

On white

11.40

#233B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#233B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B59

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B59	#FFFFFF	#000000	##FFFFFF
##233B59	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3D5A

Deuteranopia (green-blind)

#283758

Tritanopia (blue-blind)

#004246

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233b59;
/* rgb */ color: rgb(35, 59, 89);
/* oklch */ color: oklch(34.8% 0.061 254.7);

Tailwind

colors: {
  custom: {
    50: '#637088',
    500: '#233b59',
    950: '#000000',
  },
}

SCSS

$custom: #233b59;
$custom-light: #637088;
$custom-dark: #000000;

JSON

{
  "hex": "#233b59",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 89
  },
  "hsl": {
    "h": 213.333,
    "s": 43.548,
    "l": 24.314
  },
  "oklch": {
    "l": 0.34776,
    "c": 0.06082,
    "h": 254.7
  },
  "luminance": 0.04207
}

Semantic roles & 50–950 ramp

primary

#233B59

secondary

#8D704B

accent

#9B55D3

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #233B59

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

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