#233F5A#233F5A

#233F5A is a dark, muted cyan. Relative luminance 0.047; OKLCH L 35.9% C 0.058 H 248.9°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#233F5A
RGB	rgb(35, 63, 90)
HSL	hsl(209, 44%, 25%)
HSV	hsv(209, 61%, 35%)
CMYK	cmyk(61.1%, 30%, 0%, 64.7%)
CIE-LAB	lab(25.71, -1.43, -19.33)
CIE-LCH	lch(25.71, 19.38, 265.77°)
OKLab	oklab(35.87% -0.0209 -0.0543)
OKLCH	oklch(35.87% 0.058 248.9)
XYZ	xyz(4.3154, 4.6502, 10.3410)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F5A #5A3E23

analogous

#235A5A #233F5A #23235A

triadic

#233F5A #5A233F #3F5A23

tetradic

#233F5A #5A235A #5A3E23 #235A23

square

#233F5A #5A235A #5A3E23 #235A23

split-complementary

#233F5A #5A2323 #5A5A23

monochromatic

#090F16 #12202E #233F5A #345E86 #457DB2

Accessibility & contrast

On white

10.88

#233F5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#233F5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F5A

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F5A	#FFFFFF	#000000	##FFFFFF
##233F5A	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34405B

Deuteranopia (green-blind)

#2C3A59

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233f5a;
/* rgb */ color: rgb(35, 63, 90);
/* oklch */ color: oklch(35.9% 0.058 248.9);

Tailwind

colors: {
  custom: {
    50: '#637388',
    500: '#233f5a',
    950: '#000000',
  },
}

SCSS

$custom: #233f5a;
$custom-light: #637388;
$custom-dark: #000000;

JSON

{
  "hex": "#233f5a",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 90
  },
  "hsl": {
    "h": 209.455,
    "s": 44,
    "l": 24.51
  },
  "oklch": {
    "l": 0.3587,
    "c": 0.0582,
    "h": 248.9
  },
  "luminance": 0.04651
}

Semantic roles & 50–950 ramp

primary

#233F5A

secondary

#8E6C4B

accent

#9354D4

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080B

muted

#7A7B7C

Preview Lab

Preview with #233F5A

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

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