#21519F#21519F

#21519F is a dark, vivid blue. Relative luminance 0.087; OKLCH L 44.7% C 0.137 H 259.8°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#21519F
RGB	rgb(33, 81, 159)
HSL	hsl(217, 66%, 38%)
HSV	hsv(217, 79%, 62%)
CMYK	cmyk(79.2%, 49.1%, 0%, 37.6%)
CIE-LAB	lab(35.42, 13.02, -46.97)
CIE-LCH	lch(35.42, 48.75, 285.49°)
OKLab	oklab(44.74% -0.0244 -0.135)
OKLCH	oklch(44.74% 0.137 259.8)
XYZ	xyz(9.8254, 8.7102, 33.9576)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21519F #9F6F21

analogous

#21909F #21519F #30219F

triadic

#21519F #9F2151 #519F21

tetradic

#21519F #9F2190 #9F6F21 #219F30

square

#21519F #9F2190 #9F6F21 #219F30

split-complementary

#21519F #9F3021 #909F21

monochromatic

#0C1D3A #16376C #21519F #2C6BD2 #5D8EDD

Accessibility & contrast

On white

7.66

#21519F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#21519F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21519F

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21519F	#FFFFFF	#000000	##FFFFFF
##21519F	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2459A2

Deuteranopia (green-blind)

#004E9D

Tritanopia (blue-blind)

#006470

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #21519f;
/* rgb */ color: rgb(33, 81, 159);
/* oklch */ color: oklch(44.7% 0.137 259.8);

Tailwind

colors: {
  custom: {
    50: '#7081bc',
    500: '#21519f',
    950: '#000000',
  },
}

SCSS

$custom: #21519f;
$custom-light: #7081bc;
$custom-dark: #000000;

JSON

{
  "hex": "#21519f",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 159
  },
  "hsl": {
    "h": 217.143,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.44743,
    "c": 0.13719,
    "h": 259.8
  },
  "luminance": 0.08711
}

Semantic roles & 50–950 ramp

primary

#21519F

secondary

#C29A5A

accent

#A83FE9

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #21519F

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

Preview Lab → · Contrast checker → · Palette generator →