#21529E#21529E

#21529E is a dark, vivid blue. Relative luminance 0.088; OKLCH L 44.9% C 0.135 H 259.1°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#21529E
RGB	rgb(33, 82, 158)
HSL	hsl(216, 65%, 37%)
HSV	hsv(216, 79%, 62%)
CMYK	cmyk(79.1%, 48.1%, 0%, 38%)
CIE-LAB	lab(35.65, 11.96, -46.01)
CIE-LCH	lch(35.65, 47.54, 284.57°)
OKLab	oklab(44.9% -0.0254 -0.1321)
OKLCH	oklch(44.9% 0.135 259.1)
XYZ	xyz(9.8138, 8.8254, 33.5274)
Luminance	0.0883 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21529E #9E6D21

analogous

#21919E #21529E #2F219E

triadic

#21529E #9E2152 #529E21

tetradic

#21529E #9E2191 #9E6D21 #219E2F

square

#21529E #9E2191 #9E6D21 #219E2F

split-complementary

#21529E #9E2F21 #919E21

monochromatic

#0C1D39 #16386B #21529E #2C6CD1 #5C8FDD

Accessibility & contrast

On white

7.59

#21529E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#21529E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21529E

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21529E	#FFFFFF	#000000	##FFFFFF
##21529E	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#285AA1

Deuteranopia (green-blind)

#014F9C

Tritanopia (blue-blind)

#006470

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #21529e;
/* rgb */ color: rgb(33, 82, 158);
/* oklch */ color: oklch(44.9% 0.135 259.1);

Tailwind

colors: {
  custom: {
    50: '#7082bb',
    500: '#21529e',
    950: '#000000',
  },
}

SCSS

$custom: #21529e;
$custom-light: #7082bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21529e",
  "rgb": {
    "r": 33,
    "g": 82,
    "b": 158
  },
  "hsl": {
    "h": 216.48,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.44895,
    "c": 0.13456,
    "h": 259.1
  },
  "luminance": 0.08827
}

Semantic roles & 50–950 ramp

primary

#21529E

secondary

#C19959

accent

#A63FE8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #21529E

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

Preview Lab → · Contrast checker → · Palette generator →