#233B50#233B50

#233B50 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.048 H 246.2°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#233B50
RGB	rgb(35, 59, 80)
HSL	hsl(208, 39%, 23%)
HSV	hsv(208, 56%, 31%)
CMYK	cmyk(56.3%, 26.2%, 0%, 68.6%)
CIE-LAB	lab(23.88, -2.38, -15.62)
CIE-LCH	lch(23.88, 15.80, 261.33°)
OKLab	oklab(34.26% -0.0193 -0.0436)
OKLCH	oklch(34.26% 0.048 246.2)
XYZ	xyz(3.7046, 4.0642, 8.1771)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B50 #503823

analogous

#23504E #233B50 #232550

triadic

#233B50 #50233B #3B5023

tetradic

#233B50 #4E2350 #503823 #255023

square

#233B50 #4E2350 #503823 #255023

split-complementary

#233B50 #502325 #504E23

monochromatic

#091015 #101C25 #233B50 #365A7B #487AA5

Accessibility & contrast

On white

11.58

#233B50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#233B50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B50

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B50	#FFFFFF	#000000	##FFFFFF
##233B50	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323B51

Deuteranopia (green-blind)

#2C3750

Tritanopia (blue-blind)

#0B4042

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #233b50;
/* rgb */ color: rgb(35, 59, 80);
/* oklch */ color: oklch(34.3% 0.048 246.2);

Tailwind

colors: {
  custom: {
    50: '#617081',
    500: '#233b50',
    950: '#000000',
  },
}

SCSS

$custom: #233b50;
$custom-light: #617081;
$custom-dark: #000000;

JSON

{
  "hex": "#233b50",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 80
  },
  "hsl": {
    "h": 208,
    "s": 39.13,
    "l": 22.549
  },
  "oklch": {
    "l": 0.34264,
    "c": 0.0477,
    "h": 246.2
  },
  "luminance": 0.04064
}

Semantic roles & 50–950 ramp

primary

#233B50

secondary

#84664B

accent

#9059CF

background

#F5F6F7

surface

#EAECEE

border

#C6C7C9

text

#05070A

muted

#797A7C

Preview Lab

Preview with #233B50

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

Preview Lab → · Contrast checker → · Palette generator →