#263F4E#263F4E

#263F4E is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.4% C 0.040 H 235.9°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#263F4E
RGB	rgb(38, 63, 78)
HSL	hsl(203, 34%, 23%)
HSV	hsv(203, 51%, 31%)
CMYK	cmyk(51.3%, 19.2%, 0%, 69.4%)
CIE-LAB	lab(25.31, -4.86, -12.08)
CIE-LCH	lch(25.31, 13.02, 248.11°)
OKLab	oklab(35.41% -0.0227 -0.0335)
OKLCH	oklch(35.41% 0.04 235.9)
XYZ	xyz(3.9515, 4.5169, 7.8699)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F4E #4E3526

analogous

#264E49 #263F4E #262B4E

triadic

#263F4E #4E263F #3F4E26

tetradic

#263F4E #49264E #4E3526 #2B4E26

square

#263F4E #49264E #4E3526 #2B4E26

split-complementary

#263F4E #4E262B #4E4926

monochromatic

#0A1115 #121E25 #263F4E #3A6077 #4E81A0

Accessibility & contrast

On white

11.03

#263F4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#263F4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F4E

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F4E	#FFFFFF	#000000	##FFFFFF
##263F4E	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383E4F

Deuteranopia (green-blind)

#333A4E

Tritanopia (blue-blind)

#144344

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #263f4e;
/* rgb */ color: rgb(38, 63, 78);
/* oklch */ color: oklch(35.4% 0.040 235.9);

Tailwind

colors: {
  custom: {
    50: '#63747f',
    500: '#263f4e',
    950: '#000000',
  },
}

SCSS

$custom: #263f4e;
$custom-light: #63747f;
$custom-dark: #000000;

JSON

{
  "hex": "#263f4e",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 78
  },
  "hsl": {
    "h": 202.5,
    "s": 34.483,
    "l": 22.745
  },
  "oklch": {
    "l": 0.35409,
    "c": 0.04047,
    "h": 235.9
  },
  "luminance": 0.04517
}

Semantic roles & 50–950 ramp

primary

#263F4E

secondary

#81624F

accent

#865DCB

background

#F6F7F7

surface

#EBEDEE

border

#C6C8C9

text

#05080A

muted

#7A7B7C

Preview Lab

Preview with #263F4E

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

Preview Lab → · Contrast checker → · Palette generator →