#263D8E#263D8E

#263D8E is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.137 H 267.6°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#263D8E
RGB	rgb(38, 61, 142)
HSL	hsl(227, 58%, 35%)
HSV	hsv(227, 73%, 56%)
CMYK	cmyk(73.2%, 57%, 0%, 44.3%)
CIE-LAB	lab(28.65, 20.56, -47.58)
CIE-LCH	lch(28.65, 51.83, 293.38°)
OKLab	oklab(39.26% -0.0057 -0.1371)
OKLCH	oklch(39.26% 0.137 267.6)
XYZ	xyz(7.3489, 5.7018, 26.2992)
Luminance	0.0570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263D8E #8E7726

analogous

#26718E #263D8E #43268E

triadic

#263D8E #8E263D #3D8E26

tetradic

#263D8E #8E2671 #8E7726 #268E43

square

#263D8E #8E2671 #8E7726 #268E43

split-complementary

#263D8E #8E4326 #718E26

monochromatic

#0C142D #19285E #263D8E #3352BE #5B76D3

Accessibility & contrast

On white

9.81

#263D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#263D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263D8E

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263D8E	#FFFFFF	#000000	##FFFFFF
##263D8E	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004991

Deuteranopia (green-blind)

#003F8C

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #263d8e;
/* rgb */ color: rgb(38, 61, 142);
/* oklch */ color: oklch(39.3% 0.137 267.6);

Tailwind

colors: {
  custom: {
    50: '#6f72b0',
    500: '#263d8e',
    950: '#000000',
  },
}

SCSS

$custom: #263d8e;
$custom-light: #6f72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#263d8e",
  "rgb": {
    "r": 38,
    "g": 61,
    "b": 142
  },
  "hsl": {
    "h": 226.731,
    "s": 57.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39256,
    "c": 0.13718,
    "h": 267.6
  },
  "luminance": 0.05703
}

Semantic roles & 50–950 ramp

primary

#263D8E

secondary

#B8A358

accent

#BF47E1

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #263D8E

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

Preview Lab → · Contrast checker → · Palette generator →