#21529C#21529C

#21529C is a dark, vivid blue. Relative luminance 0.088; OKLCH L 44.7% C 0.132 H 258.7°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#21529C
RGB	rgb(33, 82, 156)
HSL	hsl(216, 65%, 37%)
HSV	hsv(216, 79%, 61%)
CMYK	cmyk(78.8%, 47.4%, 0%, 38.8%)
CIE-LAB	lab(35.51, 11.16, -45.02)
CIE-LCH	lch(35.51, 46.39, 283.93°)
OKLab	oklab(44.75% -0.0257 -0.1292)
OKLCH	oklch(44.75% 0.132 258.7)
XYZ	xyz(9.6430, 8.7571, 32.6281)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21529C #9C6B21

analogous

#218F9C #21529C #2E219C

triadic

#21529C #9C2152 #529C21

tetradic

#21529C #9C218F #9C6B21 #219C2E

square

#21529C #9C218F #9C6B21 #219C2E

split-complementary

#21529C #9C2E21 #8F9C21

monochromatic

#0C1D37 #163769 #21529C #2C6DCF #5B8FDC

Accessibility & contrast

On white

7.63

#21529C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#21529C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21529C

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21529C	#FFFFFF	#000000	##FFFFFF
##21529C	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A5A9F

Deuteranopia (green-blind)

#084E9B

Tritanopia (blue-blind)

#00646F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #21529c;
/* rgb */ color: rgb(33, 82, 156);
/* oklch */ color: oklch(44.7% 0.132 258.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#21529c",
  "rgb": {
    "r": 33,
    "g": 82,
    "b": 156
  },
  "hsl": {
    "h": 216.098,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.44749,
    "c": 0.13177,
    "h": 258.7
  },
  "luminance": 0.08758
}

Semantic roles & 50–950 ramp

primary

#21529C

secondary

#C19758

accent

#A540E8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #21529C

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

Preview Lab → · Contrast checker → · Palette generator →