#21546B#21546B

#21546B is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.2% C 0.066 H 230.7°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#21546B
RGB	rgb(33, 84, 107)
HSL	hsl(199, 53%, 27%)
HSV	hsv(199, 69%, 42%)
CMYK	cmyk(69.2%, 21.5%, 0%, 58%)
CIE-LAB	lab(33.40, -9.00, -18.25)
CIE-LCH	lch(33.40, 20.35, 243.76°)
OKLab	oklab(42.21% -0.0418 -0.0511)
OKLCH	oklch(42.21% 0.066 230.7)
XYZ	xyz(6.4503, 7.7248, 15.0582)
Luminance	0.0773 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21546B #6B3821

analogous

#216B5D #21546B #212F6B

triadic

#21546B #6B2154 #546B21

tetradic

#21546B #5D216B #6B3821 #2F6B21

square

#21546B #5D216B #6B3821 #2F6B21

split-complementary

#21546B #6B212F #6B5D21

monochromatic

#071217 #132F3C #21546B #2F799A #429CC5

Accessibility & contrast

On white

8.25

#21546B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#21546B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21546B

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21546B	#FFFFFF	#000000	##FFFFFF
##21546B	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48536C

Deuteranopia (green-blind)

#3E4B6B

Tritanopia (blue-blind)

#005A5C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #21546b;
/* rgb */ color: rgb(33, 84, 107);
/* oklch */ color: oklch(42.2% 0.066 230.7);

Tailwind

colors: {
  custom: {
    50: '#668495',
    500: '#21546b',
    950: '#000000',
  },
}

SCSS

$custom: #21546b;
$custom-light: #668495;
$custom-dark: #000000;

JSON

{
  "hex": "#21546b",
  "rgb": {
    "r": 33,
    "g": 84,
    "b": 107
  },
  "hsl": {
    "h": 198.649,
    "s": 52.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.42206,
    "c": 0.06601,
    "h": 230.7
  },
  "luminance": 0.07726
}

Semantic roles & 50–950 ramp

primary

#21546B

secondary

#9F6449

accent

#794CDC

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #21546B

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

Preview Lab → · Contrast checker → · Palette generator →