#263B5B#263B5B

#263B5B is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.1% C 0.062 H 258.6°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#263B5B
RGB	rgb(38, 59, 91)
HSL	hsl(216, 41%, 25%)
HSV	hsv(216, 58%, 36%)
CMYK	cmyk(58.2%, 35.2%, 0%, 64.3%)
CIE-LAB	lab(24.62, 2.38, -21.68)
CIE-LCH	lch(24.62, 21.81, 276.27°)
OKLab	oklab(35.08% -0.0123 -0.0611)
OKLCH	oklch(35.08% 0.062 258.6)
XYZ	xyz(4.2510, 4.2950, 10.5005)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B5B #5B4626

analogous

#26555B #263B5B #2B265B

triadic

#263B5B #5B263B #3B5B26

tetradic

#263B5B #5B2655 #5B4626 #265B2B

square

#263B5B #5B2655 #5B4626 #265B2B

split-complementary

#263B5B #5B2B26 #555B26

monochromatic

#090E16 #141F30 #263B5B #385786 #4A73B1

Accessibility & contrast

On white

11.30

#263B5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#263B5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B5B

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B5B	#FFFFFF	#000000	##FFFFFF
##263B5B	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3D5C

Deuteranopia (green-blind)

#28385A

Tritanopia (blue-blind)

#074246

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #263b5b;
/* rgb */ color: rgb(38, 59, 91);
/* oklch */ color: oklch(35.1% 0.062 258.6);

Tailwind

colors: {
  custom: {
    50: '#657089',
    500: '#263b5b',
    950: '#000000',
  },
}

SCSS

$custom: #263b5b;
$custom-light: #657089;
$custom-dark: #000000;

JSON

{
  "hex": "#263b5b",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 91
  },
  "hsl": {
    "h": 216.226,
    "s": 41.085,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35078,
    "c": 0.06232,
    "h": 258.6
  },
  "luminance": 0.04295
}

Semantic roles & 50–950 ramp

primary

#263B5B

secondary

#8E754F

accent

#A157D1

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #263B5B

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

Preview Lab → · Contrast checker → · Palette generator →