#21405D#21405D

#21405D is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.2% C 0.063 H 248.5°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#21405D
RGB	rgb(33, 64, 93)
HSL	hsl(209, 48%, 25%)
HSV	hsv(209, 65%, 36%)
CMYK	cmyk(64.5%, 31.2%, 0%, 63.5%)
CIE-LAB	lab(26.10, -1.44, -20.68)
CIE-LCH	lch(26.10, 20.74, 266.01°)
OKLab	oklab(36.2% -0.023 -0.0582)
OKLCH	oklch(36.2% 0.063 248.5)
XYZ	xyz(4.4357, 4.7800, 11.0427)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21405D #5D3E21

analogous

#215D5C #21405D #21225D

triadic

#21405D #5D2140 #405D21

tetradic

#21405D #5C215D #5D3E21 #225D21

square

#21405D #5C215D #5D3E21 #225D21

split-complementary

#21405D #5D2122 #5D5C21

monochromatic

#081017 #112130 #21405D #315F8A #417EB7

Accessibility & contrast

On white

10.74

#21405D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#21405D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21405D

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21405D	#FFFFFF	#000000	##FFFFFF
##21405D	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34415E

Deuteranopia (green-blind)

#2C3B5C

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #21405d;
/* rgb */ color: rgb(33, 64, 93);
/* oklch */ color: oklch(36.2% 0.063 248.5);

Tailwind

colors: {
  custom: {
    50: '#62748b',
    500: '#21405d',
    950: '#000000',
  },
}

SCSS

$custom: #21405d;
$custom-light: #62748b;
$custom-dark: #000000;

JSON

{
  "hex": "#21405d",
  "rgb": {
    "r": 33,
    "g": 64,
    "b": 93
  },
  "hsl": {
    "h": 209,
    "s": 47.619,
    "l": 24.706
  },
  "oklch": {
    "l": 0.36196,
    "c": 0.06262,
    "h": 248.5
  },
  "luminance": 0.0478
}

Semantic roles & 50–950 ramp

primary

#21405D

secondary

#916C49

accent

#9251D7

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080C

muted

#7A7B7D

Preview Lab

Preview with #21405D

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

Preview Lab → · Contrast checker → · Palette generator →