#263B71#263B71

#263B71 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.097 H 265.8°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#263B71
RGB	rgb(38, 59, 113)
HSL	hsl(223, 50%, 30%)
HSV	hsv(223, 66%, 44%)
CMYK	cmyk(66.4%, 47.8%, 0%, 55.7%)
CIE-LAB	lab(25.96, 10.69, -33.75)
CIE-LCH	lch(25.96, 35.40, 287.57°)
OKLab	oklab(36.54% -0.007 -0.0964)
OKLCH	oklch(36.54% 0.097 265.8)
XYZ	xyz(5.3429, 4.7318, 16.2513)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B71 #715C26

analogous

#266171 #263B71 #372671

triadic

#263B71 #71263B #3B7126

tetradic

#263B71 #712661 #715C26 #267137

square

#263B71 #712661 #715C26 #267137

split-complementary

#263B71 #713726 #617126

monochromatic

#080C17 #172343 #263B71 #35539F #4E6FC3

Accessibility & contrast

On white

10.79

#263B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#263B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B71

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B71	#FFFFFF	#000000	##FFFFFF
##263B71	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214173

Deuteranopia (green-blind)

#143A70

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #263b71;
/* rgb */ color: rgb(38, 59, 113);
/* oklch */ color: oklch(36.5% 0.097 265.8);

Tailwind

colors: {
  custom: {
    50: '#69709a',
    500: '#263b71',
    950: '#000000',
  },
}

SCSS

$custom: #263b71;
$custom-light: #69709a;
$custom-dark: #000000;

JSON

{
  "hex": "#263b71",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 113
  },
  "hsl": {
    "h": 223.2,
    "s": 49.669,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36542,
    "c": 0.09668,
    "h": 265.8
  },
  "luminance": 0.04732
}

Semantic roles & 50–950 ramp

primary

#263B71

secondary

#A48C4F

accent

#B24FD9

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #263B71

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

Preview Lab → · Contrast checker → · Palette generator →