#233B58#233B58

#233B58 is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.059 H 254.0°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#233B58
RGB	rgb(35, 59, 88)
HSL	hsl(213, 43%, 24%)
HSV	hsv(213, 60%, 35%)
CMYK	cmyk(60.2%, 33%, 0%, 65.5%)
CIE-LAB	lab(24.29, 0.52, -20.25)
CIE-LCH	lch(24.29, 20.26, 271.47°)
OKLab	oklab(34.72% -0.0164 -0.057)
OKLCH	oklch(34.72% 0.059 254)
XYZ	xyz(4.0179, 4.1895, 9.8275)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B58 #584023

analogous

#235658 #233B58 #262358

triadic

#233B58 #58233B #3B5823

tetradic

#233B58 #582356 #584023 #235826

square

#233B58 #582356 #584023 #235826

split-complementary

#233B58 #582623 #565823

monochromatic

#090F16 #121E2C #233B58 #345884 #4676B0

Accessibility & contrast

On white

11.43

#233B58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#233B58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B58

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B58	#FFFFFF	#000000	##FFFFFF
##233B58	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3D59

Deuteranopia (green-blind)

#283757

Tritanopia (blue-blind)

#014245

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233b58;
/* rgb */ color: rgb(35, 59, 88);
/* oklch */ color: oklch(34.7% 0.059 254.0);

Tailwind

colors: {
  custom: {
    50: '#637087',
    500: '#233b58',
    950: '#000000',
  },
}

SCSS

$custom: #233b58;
$custom-light: #637087;
$custom-dark: #000000;

JSON

{
  "hex": "#233b58",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 88
  },
  "hsl": {
    "h": 212.83,
    "s": 43.089,
    "l": 24.118
  },
  "oklch": {
    "l": 0.34716,
    "c": 0.05931,
    "h": 254
  },
  "luminance": 0.0419
}

Semantic roles & 50–950 ramp

primary

#233B58

secondary

#8C6E4B

accent

#9A55D3

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #233B58

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

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