#263D8F#263D8F

#263D8F is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.139 H 267.7°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#263D8F
RGB	rgb(38, 61, 143)
HSL	hsl(227, 58%, 35%)
HSV	hsv(227, 73%, 56%)
CMYK	cmyk(73.4%, 57.3%, 0%, 43.9%)
CIE-LAB	lab(28.73, 20.95, -48.06)
CIE-LCH	lch(28.73, 52.43, 293.55°)
OKLab	oklab(39.34% -0.0057 -0.1385)
OKLCH	oklch(39.34% 0.139 267.7)
XYZ	xyz(7.4243, 5.7320, 26.6964)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263D8F #8F7826

analogous

#26718F #263D8F #43268F

triadic

#263D8F #8F263D #3D8F26

tetradic

#263D8F #8F2671 #8F7826 #268F43

square

#263D8F #8F2671 #8F7826 #268F43

split-complementary

#263D8F #8F4326 #718F26

monochromatic

#0C142E #19285F #263D8F #3352BF #5C76D4

Accessibility & contrast

On white

9.78

#263D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#263D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263D8F

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263D8F	#FFFFFF	#000000	##FFFFFF
##263D8F	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004992

Deuteranopia (green-blind)

#003F8D

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #263d8f;
/* rgb */ color: rgb(38, 61, 143);
/* oklch */ color: oklch(39.3% 0.139 267.7);

Tailwind

colors: {
  custom: {
    50: '#6f72b0',
    500: '#263d8f',
    950: '#000000',
  },
}

SCSS

$custom: #263d8f;
$custom-light: #6f72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#263d8f",
  "rgb": {
    "r": 38,
    "g": 61,
    "b": 143
  },
  "hsl": {
    "h": 226.857,
    "s": 58.011,
    "l": 35.49
  },
  "oklch": {
    "l": 0.3934,
    "c": 0.13861,
    "h": 267.7
  },
  "luminance": 0.05733
}

Semantic roles & 50–950 ramp

primary

#263D8F

secondary

#B9A358

accent

#BF47E1

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080711

muted

#7B7A80

Preview Lab

Preview with #263D8F

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

Preview Lab → · Contrast checker → · Palette generator →