#21456E#21456E

#21456E is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.5% C 0.082 H 253.3°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#21456E
RGB	rgb(33, 69, 110)
HSL	hsl(212, 54%, 28%)
HSV	hsv(212, 70%, 43%)
CMYK	cmyk(70%, 37.3%, 0%, 56.9%)
CIE-LAB	lab(28.66, 1.72, -27.56)
CIE-LCH	lch(28.66, 27.62, 273.57°)
OKLab	oklab(38.51% -0.0235 -0.0782)
OKLCH	oklch(38.51% 0.082 253.3)
XYZ	xyz(5.5688, 5.7048, 15.5565)
Luminance	0.0570 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21456E #6E4A21

analogous

#216B6E #21456E #23216E

triadic

#21456E #6E2145 #456E21

tetradic

#21456E #6E216B #6E4A21 #216E23

square

#21456E #6E216B #6E4A21 #216E23

split-complementary

#21456E #6E2321 #6B6E21

monochromatic

#070F18 #13273F #21456E #2F639D #4380C7

Accessibility & contrast

On white

9.81

#21456E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#21456E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21456E

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21456E	#FFFFFF	#000000	##FFFFFF
##21456E	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334870

Deuteranopia (green-blind)

#28406D

Tritanopia (blue-blind)

#004F54

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #21456e;
/* rgb */ color: rgb(33, 69, 110);
/* oklch */ color: oklch(38.5% 0.082 253.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#21456e",
  "rgb": {
    "r": 33,
    "g": 69,
    "b": 110
  },
  "hsl": {
    "h": 211.948,
    "s": 53.846,
    "l": 28.039
  },
  "oklch": {
    "l": 0.38505,
    "c": 0.08168,
    "h": 253.3
  },
  "luminance": 0.05705
}

Semantic roles & 50–950 ramp

primary

#21456E

secondary

#A27849

accent

#994BDD

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #21456E

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

Preview Lab → · Contrast checker → · Palette generator →