#233A53#233A53

#233A53 is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.053 H 251.5°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#233A53
RGB	rgb(35, 58, 83)
HSL	hsl(211, 41%, 23%)
HSV	hsv(211, 58%, 33%)
CMYK	cmyk(57.8%, 30.1%, 0%, 67.5%)
CIE-LAB	lab(23.70, -0.63, -17.89)
CIE-LCH	lch(23.70, 17.90, 267.97°)
OKLab	oklab(34.17% -0.0168 -0.0502)
OKLCH	oklch(34.17% 0.053 251.5)
XYZ	xyz(3.7670, 4.0077, 8.7570)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A53 #533C23

analogous

#235253 #233A53 #242353

triadic

#233A53 #53233A #3A5323

tetradic

#233A53 #532352 #533C23 #235324

square

#233A53 #532352 #533C23 #235324

split-complementary

#233A53 #532423 #525323

monochromatic

#090F16 #111C28 #233A53 #35587E #4776A9

Accessibility & contrast

On white

11.66

#233A53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#233A53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A53

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A53	#FFFFFF	#000000	##FFFFFF
##233A53	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303B54

Deuteranopia (green-blind)

#2A3652

Tritanopia (blue-blind)

#084043

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #233a53;
/* rgb */ color: rgb(35, 58, 83);
/* oklch */ color: oklch(34.2% 0.053 251.5);

Tailwind

colors: {
  custom: {
    50: '#627083',
    500: '#233a53',
    950: '#000000',
  },
}

SCSS

$custom: #233a53;
$custom-light: #627083;
$custom-dark: #000000;

JSON

{
  "hex": "#233a53",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 83
  },
  "hsl": {
    "h": 211.25,
    "s": 40.678,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34167,
    "c": 0.0529,
    "h": 251.5
  },
  "luminance": 0.04008
}

Semantic roles & 50–950 ramp

primary

#233A53

secondary

#876A4B

accent

#9657D1

background

#F5F6F8

surface

#EAECEF

border

#C6C7CA

text

#05070A

muted

#797A7C

Preview Lab

Preview with #233A53

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

Preview Lab → · Contrast checker → · Palette generator →