#263D88#263D88

#263D88 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.129 H 267.3°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#263D88
RGB	rgb(38, 61, 136)
HSL	hsl(226, 56%, 34%)
HSV	hsv(226, 72%, 53%)
CMYK	cmyk(72.1%, 55.1%, 0%, 46.7%)
CIE-LAB	lab(28.18, 18.23, -44.62)
CIE-LCH	lch(28.18, 48.20, 292.23°)
OKLab	oklab(38.76% -0.0061 -0.1283)
OKLCH	oklch(38.76% 0.129 267.3)
XYZ	xyz(6.9105, 5.5264, 23.9903)
Luminance	0.0553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263D88 #887126

analogous

#266E88 #263D88 #402688

triadic

#263D88 #88263D #3D8826

tetradic

#263D88 #88266E #887126 #268840

square

#263D88 #88266E #887126 #268840

split-complementary

#263D88 #884026 #6E8826

monochromatic

#0B1228 #192858 #263D88 #3352B8 #5874D0

Accessibility & contrast

On white

9.97

#263D88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#263D88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263D88

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263D88	#FFFFFF	#000000	##FFFFFF
##263D88	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05478B

Deuteranopia (green-blind)

#003E86

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #263d88;
/* rgb */ color: rgb(38, 61, 136);
/* oklch */ color: oklch(38.8% 0.129 267.3);

Tailwind

colors: {
  custom: {
    50: '#6e72ab',
    500: '#263d88',
    950: '#000000',
  },
}

SCSS

$custom: #263d88;
$custom-light: #6e72ab;
$custom-dark: #000000;

JSON

{
  "hex": "#263d88",
  "rgb": {
    "r": 38,
    "g": 61,
    "b": 136
  },
  "hsl": {
    "h": 225.918,
    "s": 56.322,
    "l": 34.118
  },
  "oklch": {
    "l": 0.38761,
    "c": 0.1285,
    "h": 267.3
  },
  "luminance": 0.05527
}

Semantic roles & 50–950 ramp

primary

#263D88

secondary

#B59E55

accent

#BC48E0

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #263D88

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

Preview Lab → · Contrast checker → · Palette generator →