#233C51#233C51

#233C51 is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.6% C 0.048 H 245.2°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#233C51
RGB	rgb(35, 60, 81)
HSL	hsl(207, 40%, 23%)
HSV	hsv(207, 57%, 32%)
CMYK	cmyk(56.8%, 25.9%, 0%, 68.2%)
CIE-LAB	lab(24.27, -2.69, -15.68)
CIE-LCH	lch(24.27, 15.91, 260.27°)
OKLab	oklab(34.58% -0.0203 -0.0438)
OKLCH	oklch(34.58% 0.048 245.2)
XYZ	xyz(3.7937, 4.1828, 8.3904)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C51 #513823

analogous

#23514F #233C51 #232551

triadic

#233C51 #51233C #3C5123

tetradic

#233C51 #4F2351 #513823 #255123

square

#233C51 #4F2351 #513823 #255123

split-complementary

#233C51 #512325 #514F23

monochromatic

#091015 #111C26 #233C51 #355C7C #487BA6

Accessibility & contrast

On white

11.43

#233C51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#233C51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C51

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C51	#FFFFFF	#000000	##FFFFFF
##233C51	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333C52

Deuteranopia (green-blind)

#2D3851

Tritanopia (blue-blind)

#0A4143

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233c51;
/* rgb */ color: rgb(35, 60, 81);
/* oklch */ color: oklch(34.6% 0.048 245.2);

Tailwind

colors: {
  custom: {
    50: '#617182',
    500: '#233c51',
    950: '#000000',
  },
}

SCSS

$custom: #233c51;
$custom-light: #617182;
$custom-dark: #000000;

JSON

{
  "hex": "#233c51",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 81
  },
  "hsl": {
    "h": 207.391,
    "s": 39.655,
    "l": 22.745
  },
  "oklch": {
    "l": 0.34583,
    "c": 0.04827,
    "h": 245.2
  },
  "luminance": 0.04183
}

Semantic roles & 50–950 ramp

primary

#233C51

secondary

#85654B

accent

#8F58D0

background

#F5F6F7

surface

#EAECEE

border

#C6C7C9

text

#05070A

muted

#797A7C

Preview Lab

Preview with #233C51

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

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