#263F4F#263F4F

#263F4F is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.042 H 237.7°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#263F4F
RGB	rgb(38, 63, 79)
HSL	hsl(203, 35%, 23%)
HSV	hsv(203, 52%, 31%)
CMYK	cmyk(51.9%, 20.3%, 0%, 69%)
CIE-LAB	lab(25.36, -4.52, -12.67)
CIE-LCH	lch(25.36, 13.46, 250.38°)
OKLab	oklab(35.46% -0.0223 -0.0352)
OKLCH	oklch(35.46% 0.042 237.7)
XYZ	xyz(3.9876, 4.5313, 8.0601)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F4F #4F3626

analogous

#264F4A #263F4F #262A4F

triadic

#263F4F #4F263F #3F4F26

tetradic

#263F4F #4A264F #4F3626 #2A4F26

square

#263F4F #4A264F #4F3626 #2A4F26

split-complementary

#263F4F #4F262A #4F4A26

monochromatic

#0A1015 #121E26 #263F4F #3A6078 #4E81A2

Accessibility & contrast

On white

11.02

#263F4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#263F4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F4F

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F4F	#FFFFFF	#000000	##FFFFFF
##263F4F	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383F50

Deuteranopia (green-blind)

#323A4F

Tritanopia (blue-blind)

#134344

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #263f4f;
/* rgb */ color: rgb(38, 63, 79);
/* oklch */ color: oklch(35.5% 0.042 237.7);

Tailwind

colors: {
  custom: {
    50: '#637480',
    500: '#263f4f',
    950: '#000000',
  },
}

SCSS

$custom: #263f4f;
$custom-light: #637480;
$custom-dark: #000000;

JSON

{
  "hex": "#263f4f",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 79
  },
  "hsl": {
    "h": 203.415,
    "s": 35.043,
    "l": 22.941
  },
  "oklch": {
    "l": 0.35459,
    "c": 0.04164,
    "h": 237.7
  },
  "luminance": 0.04532
}

Semantic roles & 50–950 ramp

primary

#263F4F

secondary

#82634F

accent

#885DCB

background

#F6F7F7

surface

#EBEDEE

border

#C6C8C9

text

#05080A

muted

#7A7B7C

Preview Lab

Preview with #263F4F

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

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