#21456C#21456C

#21456C is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.4% C 0.079 H 252.2°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#21456C
RGB	rgb(33, 69, 108)
HSL	hsl(211, 53%, 28%)
HSV	hsv(211, 69%, 42%)
CMYK	cmyk(69.4%, 36.1%, 0%, 57.6%)
CIE-LAB	lab(28.54, 0.94, -26.47)
CIE-LCH	lch(28.54, 26.49, 272.04°)
OKLab	oklab(38.38% -0.0241 -0.075)
OKLCH	oklch(38.38% 0.079 252.2)
XYZ	xyz(5.4611, 5.6617, 14.9895)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21456C #6C4821

analogous

#216A6C #21456C #23216C

triadic

#21456C #6C2145 #456C21

tetradic

#21456C #6C216A #6C4821 #216C23

square

#21456C #6C216A #6C4821 #216C23

split-complementary

#21456C #6C2321 #6A6C21

monochromatic

#070F17 #13273D #21456C #2F639B #4281C5

Accessibility & contrast

On white

9.85

#21456C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#21456C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21456C

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21456C	#FFFFFF	#000000	##FFFFFF
##21456C	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34476E

Deuteranopia (green-blind)

#29406B

Tritanopia (blue-blind)

#004E53

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #21456c;
/* rgb */ color: rgb(33, 69, 108);
/* oklch */ color: oklch(38.4% 0.079 252.2);

Tailwind

colors: {
  custom: {
    50: '#657896',
    500: '#21456c',
    950: '#000000',
  },
}

SCSS

$custom: #21456c;
$custom-light: #657896;
$custom-dark: #000000;

JSON

{
  "hex": "#21456c",
  "rgb": {
    "r": 33,
    "g": 69,
    "b": 108
  },
  "hsl": {
    "h": 211.2,
    "s": 53.191,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3838,
    "c": 0.07881,
    "h": 252.2
  },
  "luminance": 0.05662
}

Semantic roles & 50–950 ramp

primary

#21456C

secondary

#A07649

accent

#974BDD

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #21456C

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

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