#263B4F#263B4F

#263B4F is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.044 H 248.0°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#263B4F
RGB	rgb(38, 59, 79)
HSL	hsl(209, 35%, 23%)
HSV	hsv(209, 52%, 31%)
CMYK	cmyk(51.9%, 25.3%, 0%, 69%)
CIE-LAB	lab(24.01, -1.89, -14.74)
CIE-LCH	lch(24.01, 14.86, 262.69°)
OKLab	oklab(34.4% -0.0166 -0.0411)
OKLCH	oklch(34.4% 0.044 248)
XYZ	xyz(3.7741, 4.1042, 7.9889)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B4F #4F3A26

analogous

#264F4E #263B4F #26264F

triadic

#263B4F #4F263B #3B4F26

tetradic

#263B4F #4E264F #4F3A26 #264F26

square

#263B4F #4E264F #4F3A26 #264F26

split-complementary

#263B4F #4F2626 #4F4E26

monochromatic

#0A0F15 #121C26 #263B4F #3A5A78 #4E79A2

Accessibility & contrast

On white

11.53

#263B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#263B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B4F

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B4F	#FFFFFF	#000000	##FFFFFF
##263B4F	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333B50

Deuteranopia (green-blind)

#2E374F

Tritanopia (blue-blind)

#144042

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #263b4f;
/* rgb */ color: rgb(38, 59, 79);
/* oklch */ color: oklch(34.4% 0.044 248.0);

Tailwind

colors: {
  custom: {
    50: '#637080',
    500: '#263b4f',
    950: '#000000',
  },
}

SCSS

$custom: #263b4f;
$custom-light: #637080;
$custom-dark: #000000;

JSON

{
  "hex": "#263b4f",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 79
  },
  "hsl": {
    "h": 209.268,
    "s": 35.043,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34399,
    "c": 0.04428,
    "h": 248
  },
  "luminance": 0.04105
}

Semantic roles & 50–950 ramp

primary

#263B4F

secondary

#82684F

accent

#935DCB

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#05070A

muted

#7A7A7C

Preview Lab

Preview with #263B4F

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

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