#263EB1#263EB1

#263EB1 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.6% C 0.184 H 268.0°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#263EB1
RGB	rgb(38, 62, 177)
HSL	hsl(230, 65%, 42%)
HSV	hsv(230, 79%, 69%)
CMYK	cmyk(78.5%, 65%, 0%, 30.6%)
CIE-LAB	lab(31.88, 33.21, -63.49)
CIE-LCH	lch(31.88, 71.65, 297.61°)
OKLab	oklab(42.58% -0.0063 -0.1837)
OKLCH	oklch(42.58% 0.184 268)
XYZ	xyz(10.4550, 7.0305, 42.3924)
Luminance	0.0703 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263EB1 #B19926

analogous

#2684B1 #263EB1 #5326B1

triadic

#263EB1 #B1263E #3EB126

tetradic

#263EB1 #B12684 #B19926 #26B153

square

#263EB1 #B12684 #B19926 #26B153

split-complementary

#263EB1 #B15326 #84B126

monochromatic

#101B4C #1B2C7F #263EB1 #3F59D6 #7184E0

Accessibility & contrast

On white

8.73

#263EB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#263EB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263EB1

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263EB1	#FFFFFF	#000000	##FFFFFF
##263EB1	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B5

Deuteranopia (green-blind)

#0045AF

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #263eb1;
/* rgb */ color: rgb(38, 62, 177);
/* oklch */ color: oklch(42.6% 0.184 268.0);

Tailwind

colors: {
  custom: {
    50: '#7873c9',
    500: '#263eb1',
    950: '#000000',
  },
}

SCSS

$custom: #263eb1;
$custom-light: #7873c9;
$custom-dark: #000000;

JSON

{
  "hex": "#263eb1",
  "rgb": {
    "r": 38,
    "g": 62,
    "b": 177
  },
  "hsl": {
    "h": 229.64,
    "s": 64.651,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42575,
    "c": 0.18386,
    "h": 268
  },
  "luminance": 0.07032
}

Semantic roles & 50–950 ramp

primary

#263EB1

secondary

#C7B86B

accent

#CB40E8

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #263EB1

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

Preview Lab → · Contrast checker → · Palette generator →