#263D5B#263D5B

#263D5B is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.6% C 0.060 H 255.5°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#263D5B
RGB	rgb(38, 61, 91)
HSL	hsl(214, 41%, 25%)
HSV	hsv(214, 58%, 36%)
CMYK	cmyk(58.2%, 33%, 0%, 64.3%)
CIE-LAB	lab(25.27, 1.02, -20.66)
CIE-LCH	lch(25.27, 20.68, 272.84°)
OKLab	oklab(35.59% -0.015 -0.0581)
OKLCH	oklch(35.59% 0.06 255.5)
XYZ	xyz(4.3557, 4.5045, 10.5354)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263D5B #5B4426

analogous

#26575B #263D5B #29265B

triadic

#263D5B #5B263D #3D5B26

tetradic

#263D5B #5B2657 #5B4426 #265B29

square

#263D5B #5B2657 #5B4426 #265B29

split-complementary

#263D5B #5B2926 #575B26

monochromatic

#090E16 #142030 #263D5B #385A86 #4A77B1

Accessibility & contrast

On white

11.05

#263D5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#263D5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263D5B

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263D5B	#FFFFFF	#000000	##FFFFFF
##263D5B	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313F5C

Deuteranopia (green-blind)

#2A3A5A

Tritanopia (blue-blind)

#074448

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #263d5b;
/* rgb */ color: rgb(38, 61, 91);
/* oklch */ color: oklch(35.6% 0.060 255.5);

Tailwind

colors: {
  custom: {
    50: '#657289',
    500: '#263d5b',
    950: '#000000',
  },
}

SCSS

$custom: #263d5b;
$custom-light: #657289;
$custom-dark: #000000;

JSON

{
  "hex": "#263d5b",
  "rgb": {
    "r": 38,
    "g": 61,
    "b": 91
  },
  "hsl": {
    "h": 213.962,
    "s": 41.085,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35586,
    "c": 0.06002,
    "h": 255.5
  },
  "luminance": 0.04505
}

Semantic roles & 50–950 ramp

primary

#263D5B

secondary

#8E734F

accent

#9C57D1

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #263D5B

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

Preview Lab → · Contrast checker → · Palette generator →