#21559E#21559E

#21559E is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.6% C 0.131 H 257.7°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#21559E
RGB	rgb(33, 85, 158)
HSL	hsl(215, 65%, 37%)
HSV	hsv(215, 79%, 62%)
CMYK	cmyk(79.1%, 46.2%, 0%, 38%)
CIE-LAB	lab(36.53, 9.96, -44.58)
CIE-LCH	lch(36.53, 45.68, 282.60°)
OKLab	oklab(45.58% -0.0279 -0.1279)
OKLCH	oklch(45.58% 0.131 257.7)
XYZ	xyz(10.0450, 9.2878, 33.6044)
Luminance	0.0929 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21559E #9E6A21

analogous

#21949E #21559E #2C219E

triadic

#21559E #9E2155 #559E21

tetradic

#21559E #9E2194 #9E6A21 #219E2C

square

#21559E #9E2194 #9E6A21 #219E2C

split-complementary

#21559E #9E2C21 #949E21

monochromatic

#0C1F39 #163A6B #21559E #2C70D1 #5C92DD

Accessibility & contrast

On white

7.35

#21559E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#21559E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21559E

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21559E	#FFFFFF	#000000	##FFFFFF
##21559E	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5CA1

Deuteranopia (green-blind)

#11519D

Tritanopia (blue-blind)

#006672

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #21559e;
/* rgb */ color: rgb(33, 85, 158);
/* oklch */ color: oklch(45.6% 0.131 257.7);

Tailwind

colors: {
  custom: {
    50: '#7084bb',
    500: '#21559e',
    950: '#000000',
  },
}

SCSS

$custom: #21559e;
$custom-light: #7084bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21559e",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 158
  },
  "hsl": {
    "h": 215.04,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.45579,
    "c": 0.1309,
    "h": 257.7
  },
  "luminance": 0.09289
}

Semantic roles & 50–950 ramp

primary

#21559E

secondary

#C19659

accent

#A23FE8

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #21559E

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

Preview Lab → · Contrast checker → · Palette generator →