#233A5A#233A5A

#233A5A is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.6% C 0.063 H 256.9°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#233A5A
RGB	rgb(35, 58, 90)
HSL	hsl(215, 44%, 25%)
HSV	hsv(215, 61%, 35%)
CMYK	cmyk(61.1%, 35.6%, 0%, 64.7%)
CIE-LAB	lab(24.07, 1.94, -21.91)
CIE-LCH	lch(24.07, 21.99, 275.07°)
OKLab	oklab(34.58% -0.0144 -0.0618)
OKLCH	oklch(34.58% 0.063 256.9)
XYZ	xyz(4.0510, 4.1213, 10.2529)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A5A #5A4323

analogous

#23565A #233A5A #28235A

triadic

#233A5A #5A233A #3A5A23

tetradic

#233A5A #5A2356 #5A4323 #235A28

square

#233A5A #5A2356 #5A4323 #235A28

split-complementary

#233A5A #5A2823 #565A23

monochromatic

#090E16 #121E2E #233A5A #345686 #4573B2

Accessibility & contrast

On white

11.51

#233A5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#233A5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A5A

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A5A	#FFFFFF	#000000	##FFFFFF
##233A5A	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3C5B

Deuteranopia (green-blind)

#263759

Tritanopia (blue-blind)

#004146

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #233a5a;
/* rgb */ color: rgb(35, 58, 90);
/* oklch */ color: oklch(34.6% 0.063 256.9);

Tailwind

colors: {
  custom: {
    50: '#636f89',
    500: '#233a5a',
    950: '#000000',
  },
}

SCSS

$custom: #233a5a;
$custom-light: #636f89;
$custom-dark: #000000;

JSON

{
  "hex": "#233a5a",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 90
  },
  "hsl": {
    "h": 214.909,
    "s": 44,
    "l": 24.51
  },
  "oklch": {
    "l": 0.3458,
    "c": 0.06348,
    "h": 256.9
  },
  "luminance": 0.04122
}

Semantic roles & 50–950 ramp

primary

#233A5A

secondary

#8E724B

accent

#9E54D4

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #233A5A

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

Preview Lab → · Contrast checker → · Palette generator →