#233F50#233F50

#233F50 is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.3% C 0.045 H 236.6°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#233F50
RGB	rgb(35, 63, 80)
HSL	hsl(203, 39%, 23%)
HSV	hsv(203, 56%, 31%)
CMYK	cmyk(56.3%, 21.2%, 0%, 68.6%)
CIE-LAB	lab(25.23, -5.01, -13.53)
CIE-LCH	lch(25.23, 14.43, 249.70°)
OKLab	oklab(35.33% -0.0248 -0.0377)
OKLCH	oklch(35.33% 0.045 236.6)
XYZ	xyz(3.9181, 4.4912, 8.2483)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F50 #503423

analogous

#23504A #233F50 #232850

triadic

#233F50 #50233F #3F5023

tetradic

#233F50 #4A2350 #503423 #285023

square

#233F50 #4A2350 #503423 #285023

split-complementary

#233F50 #502328 #504A23

monochromatic

#091115 #101D25 #233F50 #36617B #4882A5

Accessibility & contrast

On white

11.06

#233F50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#233F50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F50

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F50	#FFFFFF	#000000	##FFFFFF
##233F50	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373F51

Deuteranopia (green-blind)

#313A50

Tritanopia (blue-blind)

#0A4345

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233f50;
/* rgb */ color: rgb(35, 63, 80);
/* oklch */ color: oklch(35.3% 0.045 236.6);

Tailwind

colors: {
  custom: {
    50: '#617481',
    500: '#233f50',
    950: '#000000',
  },
}

SCSS

$custom: #233f50;
$custom-light: #617481;
$custom-dark: #000000;

JSON

{
  "hex": "#233f50",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 80
  },
  "hsl": {
    "h": 202.667,
    "s": 39.13,
    "l": 22.549
  },
  "oklch": {
    "l": 0.35331,
    "c": 0.0451,
    "h": 236.6
  },
  "luminance": 0.04492
}

Semantic roles & 50–950 ramp

primary

#233F50

secondary

#84604B

accent

#8559CF

background

#F5F7F7

surface

#EAEDEE

border

#C6C8C9

text

#05080A

muted

#797B7C

Preview Lab

Preview with #233F50

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

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