#263A88#263A88

#263A88 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.1% C 0.132 H 268.5°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#263A88
RGB	rgb(38, 58, 136)
HSL	hsl(228, 56%, 34%)
HSV	hsv(228, 72%, 53%)
CMYK	cmyk(72.1%, 57.4%, 0%, 46.7%)
CIE-LAB	lab(27.34, 20.30, -45.99)
CIE-LCH	lch(27.34, 50.27, 293.82°)
OKLab	oklab(38.12% -0.0035 -0.1324)
OKLCH	oklch(38.12% 0.132 268.5)
XYZ	xyz(6.7548, 5.2151, 23.9384)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263A88 #887426

analogous

#266B88 #263A88 #432688

triadic

#263A88 #88263A #3A8826

tetradic

#263A88 #88266B #887426 #268843

square

#263A88 #88266B #887426 #268843

split-complementary

#263A88 #884326 #6B8826

monochromatic

#0B1128 #192658 #263A88 #334EB8 #5871D0

Accessibility & contrast

On white

10.28

#263A88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#263A88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263A88

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263A88	#FFFFFF	#000000	##FFFFFF
##263A88	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458B

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #263a88;
/* rgb */ color: rgb(38, 58, 136);
/* oklch */ color: oklch(38.1% 0.132 268.5);

Tailwind

colors: {
  custom: {
    50: '#6e6fab',
    500: '#263a88',
    950: '#000000',
  },
}

SCSS

$custom: #263a88;
$custom-light: #6e6fab;
$custom-dark: #000000;

JSON

{
  "hex": "#263a88",
  "rgb": {
    "r": 38,
    "g": 58,
    "b": 136
  },
  "hsl": {
    "h": 227.755,
    "s": 56.322,
    "l": 34.118
  },
  "oklch": {
    "l": 0.38124,
    "c": 0.13248,
    "h": 268.5
  },
  "luminance": 0.05216
}

Semantic roles & 50–950 ramp

primary

#263A88

secondary

#B5A155

accent

#C148E0

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #263A88

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

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