#233C59#233C59

#233C59 is a dark, muted cyan. Relative luminance 0.043; OKLCH L 35.0% C 0.060 H 253.1°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#233C59
RGB	rgb(35, 60, 89)
HSL	hsl(212, 44%, 24%)
HSV	hsv(212, 61%, 35%)
CMYK	cmyk(60.7%, 32.6%, 0%, 65.1%)
CIE-LAB	lab(24.67, 0.21, -20.31)
CIE-LCH	lch(24.67, 20.31, 270.60°)
OKLab	oklab(35.03% -0.0174 -0.0572)
OKLCH	oklch(35.03% 0.06 253.1)
XYZ	xyz(4.1115, 4.3100, 10.0645)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C59 #594023

analogous

#235759 #233C59 #252359

triadic

#233C59 #59233C #3C5923

tetradic

#233C59 #592357 #594023 #235925

square

#233C59 #592357 #594023 #235925

split-complementary

#233C59 #592523 #575923

monochromatic

#090F16 #121E2D #233C59 #345A85 #4677B1

Accessibility & contrast

On white

11.28

#233C59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#233C59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C59

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C59	#FFFFFF	#000000	##FFFFFF
##233C59	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303D5A

Deuteranopia (green-blind)

#293858

Tritanopia (blue-blind)

#004346

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #233c59;
/* rgb */ color: rgb(35, 60, 89);
/* oklch */ color: oklch(35.0% 0.060 253.1);

Tailwind

colors: {
  custom: {
    50: '#637188',
    500: '#233c59',
    950: '#000000',
  },
}

SCSS

$custom: #233c59;
$custom-light: #637188;
$custom-dark: #000000;

JSON

{
  "hex": "#233c59",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 89
  },
  "hsl": {
    "h": 212.222,
    "s": 43.548,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35033,
    "c": 0.05974,
    "h": 253.1
  },
  "luminance": 0.0431
}

Semantic roles & 50–950 ramp

primary

#233C59

secondary

#8D6E4B

accent

#9955D3

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #233C59

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

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