#263BB1#263BB1

#263BB1 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.0% C 0.187 H 268.6°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#263BB1
RGB	rgb(38, 59, 177)
HSL	hsl(231, 65%, 42%)
HSV	hsv(231, 79%, 69%)
CMYK	cmyk(78.5%, 66.7%, 0%, 30.6%)
CIE-LAB	lab(31.14, 35.14, -64.70)
CIE-LCH	lch(31.14, 73.62, 298.51°)
OKLab	oklab(42.04% -0.0047 -0.1873)
OKLCH	oklch(42.04% 0.187 268.6)
XYZ	xyz(10.2964, 6.7132, 42.3396)
Luminance	0.0671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263BB1 #B19C26

analogous

#2681B1 #263BB1 #5626B1

triadic

#263BB1 #B1263B #3BB126

tetradic

#263BB1 #B12681 #B19C26 #26B156

square

#263BB1 #B12681 #B19C26 #26B156

split-complementary

#263BB1 #B15626 #81B126

monochromatic

#10194C #1B2A7F #263BB1 #3F55D6 #7182E0

Accessibility & contrast

On white

8.96

#263BB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#263BB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263BB1

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263BB1	#FFFFFF	#000000	##FFFFFF
##263BB1	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B5

Deuteranopia (green-blind)

#0043AF

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #263bb1;
/* rgb */ color: rgb(38, 59, 177);
/* oklch */ color: oklch(42.0% 0.187 268.6);

Tailwind

colors: {
  custom: {
    50: '#7871c9',
    500: '#263bb1',
    950: '#000000',
  },
}

SCSS

$custom: #263bb1;
$custom-light: #7871c9;
$custom-dark: #000000;

JSON

{
  "hex": "#263bb1",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 177
  },
  "hsl": {
    "h": 230.935,
    "s": 64.651,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42039,
    "c": 0.18734,
    "h": 268.6
  },
  "luminance": 0.06714
}

Semantic roles & 50–950 ramp

primary

#263BB1

secondary

#C7B96B

accent

#CE40E8

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #263BB1

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

Preview Lab → · Contrast checker → · Palette generator →