#21549B#21549B

#21549B is a mid, vivid cyan. Relative luminance 0.090; OKLCH L 45.1% C 0.128 H 257.5°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#21549B
RGB	rgb(33, 84, 155)
HSL	hsl(215, 65%, 37%)
HSV	hsv(215, 79%, 61%)
CMYK	cmyk(78.7%, 45.8%, 0%, 39.2%)
CIE-LAB	lab(36.04, 9.44, -43.57)
CIE-LCH	lch(36.04, 44.58, 282.22°)
OKLab	oklab(45.14% -0.0276 -0.1249)
OKLCH	oklch(45.14% 0.128 257.5)
XYZ	xyz(9.7117, 9.0294, 32.2350)
Luminance	0.0903 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21549B #9B6821

analogous

#21919B #21549B #2B219B

triadic

#21549B #9B2154 #549B21

tetradic

#21549B #9B2191 #9B6821 #219B2B

square

#21549B #9B2191 #9B6821 #219B2B

split-complementary

#21549B #9B2B21 #919B21

monochromatic

#0C1D36 #163969 #21549B #2C6FCD #5A91DC

Accessibility & contrast

On white

7.48

#21549B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#21549B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21549B

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21549B	#FFFFFF	#000000	##FFFFFF
##21549B	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5B9E

Deuteranopia (green-blind)

#14509A

Tritanopia (blue-blind)

#006570

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #21549b;
/* rgb */ color: rgb(33, 84, 155);
/* oklch */ color: oklch(45.1% 0.128 257.5);

Tailwind

colors: {
  custom: {
    50: '#6f83b9',
    500: '#21549b',
    950: '#000000',
  },
}

SCSS

$custom: #21549b;
$custom-light: #6f83b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21549b",
  "rgb": {
    "r": 33,
    "g": 84,
    "b": 155
  },
  "hsl": {
    "h": 214.918,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.45136,
    "c": 0.12794,
    "h": 257.5
  },
  "luminance": 0.09031
}

Semantic roles & 50–950 ramp

primary

#21549B

secondary

#C09458

accent

#A240E8

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #21549B

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

Preview Lab → · Contrast checker → · Palette generator →