#21509E#21509E

#21509E is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.4% C 0.137 H 260.0°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#21509E
RGB	rgb(33, 80, 158)
HSL	hsl(217, 65%, 37%)
HSV	hsv(217, 79%, 62%)
CMYK	cmyk(79.1%, 49.4%, 0%, 38%)
CIE-LAB	lab(35.06, 13.29, -46.95)
CIE-LCH	lch(35.06, 48.80, 285.81°)
OKLab	oklab(44.45% -0.0237 -0.135)
OKLCH	oklch(44.45% 0.137 260)
XYZ	xyz(9.6652, 8.5281, 33.4778)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21509E #9E6F21

analogous

#218F9E #21509E #31219E

triadic

#21509E #9E2150 #509E21

tetradic

#21509E #9E218F #9E6F21 #219E31

square

#21509E #9E218F #9E6F21 #219E31

split-complementary

#21509E #9E3121 #8F9E21

monochromatic

#0C1D39 #16366B #21509E #2C6AD1 #5C8DDD

Accessibility & contrast

On white

7.76

#21509E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#21509E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21509E

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21509E	#FFFFFF	#000000	##FFFFFF
##21509E	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2359A1

Deuteranopia (green-blind)

#004D9C

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #21509e;
/* rgb */ color: rgb(33, 80, 158);
/* oklch */ color: oklch(44.4% 0.137 260.0);

Tailwind

colors: {
  custom: {
    50: '#7080bb',
    500: '#21509e',
    950: '#000000',
  },
}

SCSS

$custom: #21509e;
$custom-light: #7080bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21509e",
  "rgb": {
    "r": 33,
    "g": 80,
    "b": 158
  },
  "hsl": {
    "h": 217.44,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.44445,
    "c": 0.13704,
    "h": 260
  },
  "luminance": 0.08529
}

Semantic roles & 50–950 ramp

primary

#21509E

secondary

#C19A59

accent

#A93FE8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #21509E

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

Preview Lab → · Contrast checker → · Palette generator →