#263F80#263F80

#263F80 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.6% C 0.114 H 265.5°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#263F80
RGB	rgb(38, 63, 128)
HSL	hsl(223, 54%, 33%)
HSV	hsv(223, 70%, 50%)
CMYK	cmyk(70.3%, 50.8%, 0%, 49.8%)
CIE-LAB	lab(28.18, 13.74, -39.64)
CIE-LCH	lch(28.18, 41.95, 289.11°)
OKLab	oklab(38.57% -0.0089 -0.1137)
OKLCH	oklch(38.57% 0.114 265.5)
XYZ	xyz(6.4718, 5.5250, 21.1432)
Luminance	0.0553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F80 #806726

analogous

#266C80 #263F80 #3A2680

triadic

#263F80 #80263F #3F8026

tetradic

#263F80 #80266C #806726 #26803A

square

#263F80 #80266C #806726 #26803A

split-complementary

#263F80 #803A26 #6C8026

monochromatic

#0A1122 #182851 #263F80 #3456AF #5476CC

Accessibility & contrast

On white

9.98

#263F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#263F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F80

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F80	#FFFFFF	#000000	##FFFFFF
##263F80	1.00	9.98	2.11	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4782

Deuteranopia (green-blind)

#023F7F

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #263f80;
/* rgb */ color: rgb(38, 63, 128);
/* oklch */ color: oklch(38.6% 0.114 265.5);

Tailwind

colors: {
  custom: {
    50: '#6c73a5',
    500: '#263f80',
    950: '#000000',
  },
}

SCSS

$custom: #263f80;
$custom-light: #6c73a5;
$custom-dark: #000000;

JSON

{
  "hex": "#263f80",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 128
  },
  "hsl": {
    "h": 223.333,
    "s": 54.217,
    "l": 32.549
  },
  "oklch": {
    "l": 0.38572,
    "c": 0.11403,
    "h": 265.5
  },
  "luminance": 0.05526
}

Semantic roles & 50–950 ramp

primary

#263F80

secondary

#B19651

accent

#B54ADE

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #263F80

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

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