#263B88#263B88

#263B88 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.131 H 268.1°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#263B88
RGB	rgb(38, 59, 136)
HSL	hsl(227, 56%, 34%)
HSV	hsv(227, 72%, 53%)
CMYK	cmyk(72.1%, 56.6%, 0%, 46.7%)
CIE-LAB	lab(27.62, 19.61, -45.53)
CIE-LCH	lch(27.62, 49.58, 293.30°)
OKLab	oklab(38.34% -0.0044 -0.1311)
OKLCH	oklch(38.34% 0.131 268.1)
XYZ	xyz(6.8057, 5.3169, 23.9554)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B88 #887326

analogous

#266C88 #263B88 #422688

triadic

#263B88 #88263B #3B8826

tetradic

#263B88 #88266C #887326 #268842

square

#263B88 #88266C #887326 #268842

split-complementary

#263B88 #884226 #6C8826

monochromatic

#0B1128 #192658 #263B88 #3350B8 #5872D0

Accessibility & contrast

On white

10.18

#263B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#263B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B88

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B88	#FFFFFF	#000000	##FFFFFF
##263B88	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468B

Deuteranopia (green-blind)

#003D86

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #263b88;
/* rgb */ color: rgb(38, 59, 136);
/* oklch */ color: oklch(38.3% 0.131 268.1);

Tailwind

colors: {
  custom: {
    50: '#6e70ab',
    500: '#263b88',
    950: '#000000',
  },
}

SCSS

$custom: #263b88;
$custom-light: #6e70ab;
$custom-dark: #000000;

JSON

{
  "hex": "#263b88",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 136
  },
  "hsl": {
    "h": 227.143,
    "s": 56.322,
    "l": 34.118
  },
  "oklch": {
    "l": 0.38335,
    "c": 0.13115,
    "h": 268.1
  },
  "luminance": 0.05318
}

Semantic roles & 50–950 ramp

primary

#263B88

secondary

#B5A055

accent

#BF48E0

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #263B88

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

Preview Lab → · Contrast checker → · Palette generator →