#263B40#263B40

#263B40 is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.7% C 0.028 H 214.2°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#263B40
RGB	rgb(38, 59, 64)
HSL	hsl(192, 25%, 20%)
HSV	hsv(192, 41%, 25%)
CMYK	cmyk(40.6%, 7.8%, 0%, 74.9%)
CIE-LAB	lab(23.37, -6.78, -5.74)
CIE-LCH	lch(23.37, 8.88, 220.24°)
OKLab	oklab(33.68% -0.0231 -0.0157)
OKLCH	oklch(33.68% 0.028 214.2)
XYZ	xyz(3.2884, 3.9100, 5.4309)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B40 #402B26

analogous

#264038 #263B40 #262E40

triadic

#263B40 #40263B #3B4026

tetradic

#263B40 #382640 #402B26 #2E4026

square

#263B40 #382640 #402B26 #2E4026

split-complementary

#263B40 #40262E #403826

monochromatic

#0B1213 #0F181A #263B40 #3D5E66 #54828D

Accessibility & contrast

On white

11.78

#263B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#263B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B40

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B40	#FFFFFF	#000000	##FFFFFF
##263B40	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373A40

Deuteranopia (green-blind)

#333640

Tritanopia (blue-blind)

#1C3D3C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #263b40;
/* rgb */ color: rgb(38, 59, 64);
/* oklch */ color: oklch(33.7% 0.028 214.2);

Tailwind

colors: {
  custom: {
    50: '#617174',
    500: '#263b40',
    950: '#000000',
  },
}

SCSS

$custom: #263b40;
$custom-light: #617174;
$custom-dark: #000000;

JSON

{
  "hex": "#263b40",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 64
  },
  "hsl": {
    "h": 191.538,
    "s": 25.49,
    "l": 20
  },
  "oklch": {
    "l": 0.33679,
    "c": 0.02796,
    "h": 214.2
  },
  "luminance": 0.0391
}

Semantic roles & 50–950 ramp

primary

#263B40

secondary

#725650

accent

#7866C2

background

#F5F6F7

surface

#EAECED

border

#C6C7C8

text

#050708

muted

#797A7B

Preview Lab

Preview with #263B40

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

Preview Lab → · Contrast checker → · Palette generator →