#21529F#21529F

#21529F is a dark, vivid blue. Relative luminance 0.089; OKLCH L 45.0% C 0.136 H 259.3°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#21529F
RGB	rgb(33, 82, 159)
HSL	hsl(217, 66%, 38%)
HSV	hsv(217, 79%, 62%)
CMYK	cmyk(79.2%, 48.4%, 0%, 37.6%)
CIE-LAB	lab(35.71, 12.35, -46.50)
CIE-LCH	lch(35.71, 48.11, 284.88°)
OKLab	oklab(44.97% -0.0252 -0.1336)
OKLCH	oklch(44.97% 0.136 259.3)
XYZ	xyz(9.9002, 8.8600, 33.9825)
Luminance	0.0886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21529F #9F6E21

analogous

#21919F #21529F #2F219F

triadic

#21529F #9F2152 #529F21

tetradic

#21529F #9F2191 #9F6E21 #219F2F

square

#21529F #9F2191 #9F6E21 #219F2F

split-complementary

#21529F #9F2F21 #919F21

monochromatic

#0C1E3A #16386C #21529F #2C6CD2 #5D8FDD

Accessibility & contrast

On white

7.58

#21529F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#21529F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21529F

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21529F	#FFFFFF	#000000	##FFFFFF
##21529F	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275AA2

Deuteranopia (green-blind)

#004F9D

Tritanopia (blue-blind)

#006471

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #21529f;
/* rgb */ color: rgb(33, 82, 159);
/* oklch */ color: oklch(45.0% 0.136 259.3);

Tailwind

colors: {
  custom: {
    50: '#7082bc',
    500: '#21529f',
    950: '#000000',
  },
}

SCSS

$custom: #21529f;
$custom-light: #7082bc;
$custom-dark: #000000;

JSON

{
  "hex": "#21529f",
  "rgb": {
    "r": 33,
    "g": 82,
    "b": 159
  },
  "hsl": {
    "h": 216.667,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.44968,
    "c": 0.13596,
    "h": 259.3
  },
  "luminance": 0.08861
}

Semantic roles & 50–950 ramp

primary

#21529F

secondary

#C2995A

accent

#A73FE9

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #21529F

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

Preview Lab → · Contrast checker → · Palette generator →