#263E5B#263E5B

#263E5B is a dark, muted cyan. Relative luminance 0.046; OKLCH L 35.8% C 0.059 H 253.9°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#263E5B
RGB	rgb(38, 62, 91)
HSL	hsl(213, 41%, 25%)
HSV	hsv(213, 58%, 36%)
CMYK	cmyk(58.2%, 31.9%, 0%, 64.3%)
CIE-LAB	lab(25.60, 0.35, -20.15)
CIE-LCH	lch(25.60, 20.15, 271.00°)
OKLab	oklab(35.84% -0.0163 -0.0566)
OKLCH	oklch(35.84% 0.059 253.9)
XYZ	xyz(4.4096, 4.6123, 10.5534)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263E5B #5B4326

analogous

#26585B #263E5B #28265B

triadic

#263E5B #5B263E #3E5B26

tetradic

#263E5B #5B2658 #5B4326 #265B28

square

#263E5B #5B2658 #5B4326 #265B28

split-complementary

#263E5B #5B2826 #585B26

monochromatic

#090F16 #142130 #263E5B #385B86 #4A79B1

Accessibility & contrast

On white

10.92

#263E5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#263E5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263E5B

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263E5B	#FFFFFF	#000000	##FFFFFF
##263E5B	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323F5C

Deuteranopia (green-blind)

#2C3A5A

Tritanopia (blue-blind)

#064548

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #263e5b;
/* rgb */ color: rgb(38, 62, 91);
/* oklch */ color: oklch(35.8% 0.059 253.9);

Tailwind

colors: {
  custom: {
    50: '#657389',
    500: '#263e5b',
    950: '#000000',
  },
}

SCSS

$custom: #263e5b;
$custom-light: #657389;
$custom-dark: #000000;

JSON

{
  "hex": "#263e5b",
  "rgb": {
    "r": 38,
    "g": 62,
    "b": 91
  },
  "hsl": {
    "h": 212.83,
    "s": 41.085,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35842,
    "c": 0.05893,
    "h": 253.9
  },
  "luminance": 0.04613
}

Semantic roles & 50–950 ramp

primary

#263E5B

secondary

#8E714F

accent

#9A57D1

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06080B

muted

#7A7B7C

Preview Lab

Preview with #263E5B

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

Preview Lab → · Contrast checker → · Palette generator →