#233B57#233B57

#233B57 is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.058 H 253.2°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#233B57
RGB	rgb(35, 59, 87)
HSL	hsl(212, 43%, 24%)
HSV	hsv(212, 60%, 34%)
CMYK	cmyk(59.8%, 32.2%, 0%, 65.9%)
CIE-LAB	lab(24.24, 0.15, -19.68)
CIE-LCH	lch(24.24, 19.68, 270.44°)
OKLab	oklab(34.66% -0.0167 -0.0553)
OKLCH	oklch(34.66% 0.058 253.2)
XYZ	xyz(3.9768, 4.1730, 9.6109)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B57 #573F23

analogous

#235557 #233B57 #252357

triadic

#233B57 #57233B #3B5723

tetradic

#233B57 #572355 #573F23 #235725

square

#233B57 #572355 #573F23 #235725

split-complementary

#233B57 #572523 #555723

monochromatic

#090F16 #111D2B #233B57 #355983 #4676AE

Accessibility & contrast

On white

11.45

#233B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#233B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B57

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B57	#FFFFFF	#000000	##FFFFFF
##233B57	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303C58

Deuteranopia (green-blind)

#293756

Tritanopia (blue-blind)

#024145

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233b57;
/* rgb */ color: rgb(35, 59, 87);
/* oklch */ color: oklch(34.7% 0.058 253.2);

Tailwind

colors: {
  custom: {
    50: '#627086',
    500: '#233b57',
    950: '#000000',
  },
}

SCSS

$custom: #233b57;
$custom-light: #627086;
$custom-dark: #000000;

JSON

{
  "hex": "#233b57",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 87
  },
  "hsl": {
    "h": 212.308,
    "s": 42.623,
    "l": 23.922
  },
  "oklch": {
    "l": 0.34658,
    "c": 0.05781,
    "h": 253.2
  },
  "luminance": 0.04173
}

Semantic roles & 50–950 ramp

primary

#233B57

secondary

#8B6D4B

accent

#9955D2

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #233B57

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

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