#21456D#21456D

#21456D is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.4% C 0.080 H 252.7°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#21456D
RGB	rgb(33, 69, 109)
HSL	hsl(212, 54%, 28%)
HSV	hsv(212, 70%, 43%)
CMYK	cmyk(69.7%, 36.7%, 0%, 57.3%)
CIE-LAB	lab(28.60, 1.33, -27.02)
CIE-LCH	lch(28.60, 27.05, 272.82°)
OKLab	oklab(38.44% -0.0238 -0.0766)
OKLCH	oklch(38.44% 0.08 252.7)
XYZ	xyz(5.5146, 5.6831, 15.2714)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21456D #6D4921

analogous

#216B6D #21456D #23216D

triadic

#21456D #6D2145 #456D21

tetradic

#21456D #6D216B #6D4921 #216D23

square

#21456D #6D216B #6D4921 #216D23

split-complementary

#21456D #6D2321 #6B6D21

monochromatic

#070F17 #13273E #21456D #2F639C #4281C6

Accessibility & contrast

On white

9.83

#21456D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#21456D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21456D

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21456D	#FFFFFF	#000000	##FFFFFF
##21456D	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33476F

Deuteranopia (green-blind)

#29406C

Tritanopia (blue-blind)

#004E54

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #21456d;
/* rgb */ color: rgb(33, 69, 109);
/* oklch */ color: oklch(38.4% 0.080 252.7);

Tailwind

colors: {
  custom: {
    50: '#657897',
    500: '#21456d',
    950: '#000000',
  },
}

SCSS

$custom: #21456d;
$custom-light: #657897;
$custom-dark: #000000;

JSON

{
  "hex": "#21456d",
  "rgb": {
    "r": 33,
    "g": 69,
    "b": 109
  },
  "hsl": {
    "h": 211.579,
    "s": 53.521,
    "l": 27.843
  },
  "oklch": {
    "l": 0.38442,
    "c": 0.08024,
    "h": 252.7
  },
  "luminance": 0.05684
}

Semantic roles & 50–950 ramp

primary

#21456D

secondary

#A17749

accent

#984BDD

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #21456D

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

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