#21456F#21456F

#21456F is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.6% C 0.083 H 253.8°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#21456F
RGB	rgb(33, 69, 111)
HSL	hsl(212, 54%, 28%)
HSV	hsv(212, 70%, 44%)
CMYK	cmyk(70.3%, 37.8%, 0%, 56.5%)
CIE-LAB	lab(28.71, 2.11, -28.11)
CIE-LCH	lch(28.71, 28.19, 274.29°)
OKLab	oklab(38.57% -0.0232 -0.0798)
OKLCH	oklch(38.57% 0.083 253.8)
XYZ	xyz(5.6235, 5.7267, 15.8448)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21456F #6F4B21

analogous

#216C6F #21456F #24216F

triadic

#21456F #6F2145 #456F21

tetradic

#21456F #6F216C #6F4B21 #216F24

square

#21456F #6F216C #6F4B21 #216F24

split-complementary

#21456F #6F2421 #6C6F21

monochromatic

#070F18 #132840 #21456F #2F629E #4380C7

Accessibility & contrast

On white

9.79

#21456F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#21456F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21456F

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21456F	#FFFFFF	#000000	##FFFFFF
##21456F	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324871

Deuteranopia (green-blind)

#27406E

Tritanopia (blue-blind)

#004F54

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #21456f;
/* rgb */ color: rgb(33, 69, 111);
/* oklch */ color: oklch(38.6% 0.083 253.8);

Tailwind

colors: {
  custom: {
    50: '#667898',
    500: '#21456f',
    950: '#000000',
  },
}

SCSS

$custom: #21456f;
$custom-light: #667898;
$custom-dark: #000000;

JSON

{
  "hex": "#21456f",
  "rgb": {
    "r": 33,
    "g": 69,
    "b": 111
  },
  "hsl": {
    "h": 212.308,
    "s": 54.167,
    "l": 28.235
  },
  "oklch": {
    "l": 0.38568,
    "c": 0.08312,
    "h": 253.8
  },
  "luminance": 0.05727
}

Semantic roles & 50–950 ramp

primary

#21456F

secondary

#A37949

accent

#9A4ADE

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #21456F

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

Preview Lab → · Contrast checker → · Palette generator →