#233C58#233C58

#233C58 is a dark, muted cyan. Relative luminance 0.043; OKLCH L 35.0% C 0.058 H 252.3°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#233C58
RGB	rgb(35, 60, 88)
HSL	hsl(212, 43%, 24%)
HSV	hsv(212, 60%, 35%)
CMYK	cmyk(60.2%, 31.8%, 0%, 65.5%)
CIE-LAB	lab(24.62, -0.16, -19.73)
CIE-LCH	lch(24.62, 19.74, 269.55°)
OKLab	oklab(34.98% -0.0177 -0.0555)
OKLCH	oklch(34.98% 0.058 252.3)
XYZ	xyz(4.0698, 4.2933, 9.8448)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C58 #583F23

analogous

#235758 #233C58 #252358

triadic

#233C58 #58233C #3C5823

tetradic

#233C58 #582357 #583F23 #235825

square

#233C58 #582357 #583F23 #235825

split-complementary

#233C58 #582523 #575823

monochromatic

#090F16 #121E2C #233C58 #345A84 #4678B0

Accessibility & contrast

On white

11.30

#233C58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#233C58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C58

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C58	#FFFFFF	#000000	##FFFFFF
##233C58	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303D59

Deuteranopia (green-blind)

#2A3857

Tritanopia (blue-blind)

#014246

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233c58;
/* rgb */ color: rgb(35, 60, 88);
/* oklch */ color: oklch(35.0% 0.058 252.3);

Tailwind

colors: {
  custom: {
    50: '#637187',
    500: '#233c58',
    950: '#000000',
  },
}

SCSS

$custom: #233c58;
$custom-light: #637187;
$custom-dark: #000000;

JSON

{
  "hex": "#233c58",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 88
  },
  "hsl": {
    "h": 211.698,
    "s": 43.089,
    "l": 24.118
  },
  "oklch": {
    "l": 0.34975,
    "c": 0.05826,
    "h": 252.3
  },
  "luminance": 0.04294
}

Semantic roles & 50–950 ramp

primary

#233C58

secondary

#8C6D4B

accent

#9755D3

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #233C58

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

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