#233F5C#233F5C

#233F5C is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.0% C 0.061 H 250.6°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#233F5C
RGB	rgb(35, 63, 92)
HSL	hsl(211, 45%, 25%)
HSV	hsv(211, 62%, 36%)
CMYK	cmyk(62%, 31.5%, 0%, 63.9%)
CIE-LAB	lab(25.82, -0.69, -20.47)
CIE-LCH	lch(25.82, 20.48, 268.07°)
OKLab	oklab(35.98% -0.0202 -0.0576)
OKLCH	oklch(35.98% 0.061 250.6)
XYZ	xyz(4.4017, 4.6847, 10.7954)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F5C #5C4023

analogous

#235C5C #233F5C #23235C

triadic

#233F5C #5C233F #3F5C23

tetradic

#233F5C #5C235C #5C4023 #235C23

square

#233F5C #5C235C #5C4023 #235C23

split-complementary

#233F5C #5C2323 #5C5C23

monochromatic

#080F16 #122130 #233F5C #345D88 #457CB5

Accessibility & contrast

On white

10.84

#233F5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#233F5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F5C

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F5C	#FFFFFF	#000000	##FFFFFF
##233F5C	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33405D

Deuteranopia (green-blind)

#2B3B5B

Tritanopia (blue-blind)

#004649

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233f5c;
/* rgb */ color: rgb(35, 63, 92);
/* oklch */ color: oklch(36.0% 0.061 250.6);

Tailwind

colors: {
  custom: {
    50: '#63738a',
    500: '#233f5c',
    950: '#000000',
  },
}

SCSS

$custom: #233f5c;
$custom-light: #63738a;
$custom-dark: #000000;

JSON

{
  "hex": "#233f5c",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 92
  },
  "hsl": {
    "h": 210.526,
    "s": 44.882,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35984,
    "c": 0.06105,
    "h": 250.6
  },
  "luminance": 0.04685
}

Semantic roles & 50–950 ramp

primary

#233F5C

secondary

#906E4B

accent

#9553D5

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#06080B

muted

#7A7B7C

Preview Lab

Preview with #233F5C

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

Preview Lab → · Contrast checker → · Palette generator →