#233A4D#233A4D

#233A4D is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.8% C 0.044 H 244.6°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#233A4D
RGB	rgb(35, 58, 77)
HSL	hsl(207, 38%, 22%)
HSV	hsv(207, 55%, 30%)
CMYK	cmyk(54.5%, 24.7%, 0%, 69.8%)
CIE-LAB	lab(23.40, -2.77, -14.37)
CIE-LCH	lch(23.40, 14.64, 259.07°)
OKLab	oklab(33.84% -0.0191 -0.0401)
OKLCH	oklch(33.84% 0.044 244.6)
XYZ	xyz(3.5453, 3.9190, 7.5894)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A4D #4D3623

analogous

#234D4B #233A4D #23254D

triadic

#233A4D #4D233A #3A4D23

tetradic

#233A4D #4B234D #4D3623 #254D23

square

#233A4D #4B234D #4D3623 #254D23

split-complementary

#233A4D #4D2325 #4D4B23

monochromatic

#0A1015 #101A23 #233A4D #365A77 #4979A1

Accessibility & contrast

On white

11.77

#233A4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#233A4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A4D

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A4D	#FFFFFF	#000000	##FFFFFF
##233A4D	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323A4E

Deuteranopia (green-blind)

#2C364D

Tritanopia (blue-blind)

#0F3F40

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #233a4d;
/* rgb */ color: rgb(35, 58, 77);
/* oklch */ color: oklch(33.8% 0.044 244.6);

Tailwind

colors: {
  custom: {
    50: '#61707f',
    500: '#233a4d',
    950: '#000000',
  },
}

SCSS

$custom: #233a4d;
$custom-light: #61707f;
$custom-dark: #000000;

JSON

{
  "hex": "#233a4d",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 77
  },
  "hsl": {
    "h": 207.143,
    "s": 37.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.33837,
    "c": 0.04437,
    "h": 244.6
  },
  "luminance": 0.03919
}

Semantic roles & 50–950 ramp

primary

#233A4D

secondary

#81634B

accent

#8E5ACD

background

#F5F6F7

surface

#EAECEE

border

#C6C7C9

text

#05070A

muted

#797A7C

Preview Lab

Preview with #233A4D

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

Preview Lab → · Contrast checker → · Palette generator →