#263B79#263B79

#263B79 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.1% C 0.109 H 266.9°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#263B79
RGB	rgb(38, 59, 121)
HSL	hsl(225, 52%, 31%)
HSV	hsv(225, 69%, 47%)
CMYK	cmyk(68.6%, 51.2%, 0%, 52.5%)
CIE-LAB	lab(26.51, 13.79, -37.94)
CIE-LCH	lch(26.51, 40.37, 289.97°)
OKLab	oklab(37.14% -0.0058 -0.1087)
OKLCH	oklch(37.14% 0.109 266.9)
XYZ	xyz(5.8133, 4.9199, 18.7287)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B79 #796426

analogous

#266479 #263B79 #3A2679

triadic

#263B79 #79263B #3B7926

tetradic

#263B79 #792664 #796426 #26793A

square

#263B79 #792664 #796426 #26793A

split-complementary

#263B79 #793A26 #647926

monochromatic

#090E1C #17244A #263B79 #3552A8 #516FC8

Accessibility & contrast

On white

10.58

#263B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#263B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B79

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B79	#FFFFFF	#000000	##FFFFFF
##263B79	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19437B

Deuteranopia (green-blind)

#043B78

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #263b79;
/* rgb */ color: rgb(38, 59, 121);
/* oklch */ color: oklch(37.1% 0.109 266.9);

Tailwind

colors: {
  custom: {
    50: '#6a70a0',
    500: '#263b79',
    950: '#000000',
  },
}

SCSS

$custom: #263b79;
$custom-light: #6a70a0;
$custom-dark: #000000;

JSON

{
  "hex": "#263b79",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 121
  },
  "hsl": {
    "h": 224.819,
    "s": 52.201,
    "l": 31.176
  },
  "oklch": {
    "l": 0.37138,
    "c": 0.10889,
    "h": 266.9
  },
  "luminance": 0.0492
}

Semantic roles & 50–950 ramp

primary

#263B79

secondary

#AB9450

accent

#B74CDC

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #263B79

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

Preview Lab → · Contrast checker → · Palette generator →