#263F88#263F88

#263F88 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.2% C 0.126 H 266.4°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#263F88
RGB	rgb(38, 63, 136)
HSL	hsl(225, 56%, 34%)
HSV	hsv(225, 72%, 53%)
CMYK	cmyk(72.1%, 53.7%, 0%, 46.7%)
CIE-LAB	lab(28.76, 16.86, -43.69)
CIE-LCH	lch(28.76, 46.83, 291.10°)
OKLab	oklab(39.19% -0.0079 -0.1256)
OKLCH	oklch(39.19% 0.126 266.4)
XYZ	xyz(7.0192, 5.7439, 24.0265)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F88 #886F26

analogous

#267088 #263F88 #3E2688

triadic

#263F88 #88263F #3F8826

tetradic

#263F88 #882670 #886F26 #26883E

square

#263F88 #882670 #886F26 #26883E

split-complementary

#263F88 #883E26 #708826

monochromatic

#0B1328 #192958 #263F88 #3355B8 #5877D0

Accessibility & contrast

On white

9.77

#263F88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#263F88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F88

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F88	#FFFFFF	#000000	##FFFFFF
##263F88	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F498B

Deuteranopia (green-blind)

#004087

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #263f88;
/* rgb */ color: rgb(38, 63, 136);
/* oklch */ color: oklch(39.2% 0.126 266.4);

Tailwind

colors: {
  custom: {
    50: '#6e73ab',
    500: '#263f88',
    950: '#000000',
  },
}

SCSS

$custom: #263f88;
$custom-light: #6e73ab;
$custom-dark: #000000;

JSON

{
  "hex": "#263f88",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 136
  },
  "hsl": {
    "h": 224.694,
    "s": 56.322,
    "l": 34.118
  },
  "oklch": {
    "l": 0.39194,
    "c": 0.12584,
    "h": 266.4
  },
  "luminance": 0.05745
}

Semantic roles & 50–950 ramp

primary

#263F88

secondary

#B59C55

accent

#B948E0

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #263F88

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

Preview Lab → · Contrast checker → · Palette generator →