#233F58#233F58

#233F58 is a dark, muted cyan. Relative luminance 0.046; OKLCH L 35.8% C 0.055 H 247.0°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#233F58
RGB	rgb(35, 63, 88)
HSL	hsl(208, 43%, 24%)
HSV	hsv(208, 60%, 35%)
CMYK	cmyk(60.2%, 28.4%, 0%, 65.5%)
CIE-LAB	lab(25.61, -2.16, -18.18)
CIE-LCH	lch(25.61, 18.31, 263.23°)
OKLab	oklab(35.76% -0.0217 -0.051)
OKLCH	oklch(35.76% 0.055 247)
XYZ	xyz(4.2315, 4.6166, 9.8987)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F58 #583C23

analogous

#235857 #233F58 #232558

triadic

#233F58 #58233F #3F5823

tetradic

#233F58 #572358 #583C23 #255823

square

#233F58 #572358 #583C23 #255823

split-complementary

#233F58 #582325 #585723

monochromatic

#091016 #12202C #233F58 #345E84 #467EB0

Accessibility & contrast

On white

10.92

#233F58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#233F58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F58

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F58	#FFFFFF	#000000	##FFFFFF
##233F58	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344059

Deuteranopia (green-blind)

#2D3A58

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233f58;
/* rgb */ color: rgb(35, 63, 88);
/* oklch */ color: oklch(35.8% 0.055 247.0);

Tailwind

colors: {
  custom: {
    50: '#637387',
    500: '#233f58',
    950: '#000000',
  },
}

SCSS

$custom: #233f58;
$custom-light: #637387;
$custom-dark: #000000;

JSON

{
  "hex": "#233f58",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 88
  },
  "hsl": {
    "h": 208.302,
    "s": 43.089,
    "l": 24.118
  },
  "oklch": {
    "l": 0.35757,
    "c": 0.0554,
    "h": 247
  },
  "luminance": 0.04617
}

Semantic roles & 50–950 ramp

primary

#233F58

secondary

#8C6A4B

accent

#9055D3

background

#F6F7F8

surface

#EBEDEF

border

#C6C8CA

text

#05080B

muted

#7A7B7C

Preview Lab

Preview with #233F58

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

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