#263B78#263B78

#263B78 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.1% C 0.107 H 266.8°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#263B78
RGB	rgb(38, 59, 120)
HSL	hsl(225, 52%, 31%)
HSV	hsv(225, 68%, 47%)
CMYK	cmyk(68.3%, 50.8%, 0%, 52.9%)
CIE-LAB	lab(26.43, 13.40, -37.42)
CIE-LCH	lch(26.43, 39.75, 289.70°)
OKLab	oklab(37.06% -0.0059 -0.1072)
OKLCH	oklch(37.06% 0.107 266.8)
XYZ	xyz(5.7523, 4.8955, 18.4074)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B78 #786326

analogous

#266478 #263B78 #3A2678

triadic

#263B78 #78263B #3B7826

tetradic

#263B78 #782664 #786326 #26783A

square

#263B78 #782664 #786326 #26783A

split-complementary

#263B78 #783A26 #647826

monochromatic

#090D1B #17244A #263B78 #3552A6 #516FC8

Accessibility & contrast

On white

10.61

#263B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#263B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B78

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B78	#FFFFFF	#000000	##FFFFFF
##263B78	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A427A

Deuteranopia (green-blind)

#063B77

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #263b78;
/* rgb */ color: rgb(38, 59, 120);
/* oklch */ color: oklch(37.1% 0.107 266.8);

Tailwind

colors: {
  custom: {
    50: '#6a709f',
    500: '#263b78',
    950: '#000000',
  },
}

SCSS

$custom: #263b78;
$custom-light: #6a709f;
$custom-dark: #000000;

JSON

{
  "hex": "#263b78",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 120
  },
  "hsl": {
    "h": 224.634,
    "s": 51.899,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37062,
    "c": 0.10738,
    "h": 266.8
  },
  "luminance": 0.04896
}

Semantic roles & 50–950 ramp

primary

#263B78

secondary

#AA9350

accent

#B74CDB

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #263B78

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

Preview Lab → · Contrast checker → · Palette generator →