#21529D#21529D

#21529D is a dark, vivid blue. Relative luminance 0.088; OKLCH L 44.8% C 0.133 H 258.9°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#21529D
RGB	rgb(33, 82, 157)
HSL	hsl(216, 65%, 37%)
HSV	hsv(216, 79%, 62%)
CMYK	cmyk(79%, 47.8%, 0%, 38.4%)
CIE-LAB	lab(35.58, 11.56, -45.52)
CIE-LCH	lch(35.58, 46.96, 284.25°)
OKLab	oklab(44.82% -0.0255 -0.1307)
OKLCH	oklch(44.82% 0.133 258.9)
XYZ	xyz(9.7281, 8.7911, 33.0759)
Luminance	0.0879 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21529D #9D6C21

analogous

#21909D #21529D #2E219D

triadic

#21529D #9D2152 #529D21

tetradic

#21529D #9D2190 #9D6C21 #219D2E

square

#21529D #9D2190 #9D6C21 #219D2E

split-complementary

#21529D #9D2E21 #909D21

monochromatic

#0C1D38 #16386A #21529D #2C6CD0 #5C8FDD

Accessibility & contrast

On white

7.61

#21529D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#21529D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21529D

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21529D	#FFFFFF	#000000	##FFFFFF
##21529D	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295AA0

Deuteranopia (green-blind)

#044E9C

Tritanopia (blue-blind)

#006470

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #21529d;
/* rgb */ color: rgb(33, 82, 157);
/* oklch */ color: oklch(44.8% 0.133 258.9);

Tailwind

colors: {
  custom: {
    50: '#7082ba',
    500: '#21529d',
    950: '#000000',
  },
}

SCSS

$custom: #21529d;
$custom-light: #7082ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21529d",
  "rgb": {
    "r": 33,
    "g": 82,
    "b": 157
  },
  "hsl": {
    "h": 216.29,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.44822,
    "c": 0.13317,
    "h": 258.9
  },
  "luminance": 0.08792
}

Semantic roles & 50–950 ramp

primary

#21529D

secondary

#C19859

accent

#A640E8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #21529D

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

Preview Lab → · Contrast checker → · Palette generator →