#21559F#21559F

#21559F is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.6% C 0.132 H 257.9°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#21559F
RGB	rgb(33, 85, 159)
HSL	hsl(215, 66%, 38%)
HSV	hsv(215, 79%, 62%)
CMYK	cmyk(79.2%, 46.5%, 0%, 37.6%)
CIE-LAB	lab(36.60, 10.36, -45.08)
CIE-LCH	lch(36.60, 46.26, 282.94°)
OKLab	oklab(45.65% -0.0277 -0.1293)
OKLCH	oklch(45.65% 0.132 257.9)
XYZ	xyz(10.1314, 9.3223, 34.0596)
Luminance	0.0932 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21559F #9F6B21

analogous

#21949F #21559F #2C219F

triadic

#21559F #9F2155 #559F21

tetradic

#21559F #9F2194 #9F6B21 #219F2C

square

#21559F #9F2194 #9F6B21 #219F2C

split-complementary

#21559F #9F2C21 #949F21

monochromatic

#0C1F3A #163A6C #21559F #2C70D2 #5D92DD

Accessibility & contrast

On white

7.33

#21559F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#21559F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21559F

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21559F	#FFFFFF	#000000	##FFFFFF
##21559F	1.00	7.33	2.86	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5CA2

Deuteranopia (green-blind)

#0F519E

Tritanopia (blue-blind)

#006772

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #21559f;
/* rgb */ color: rgb(33, 85, 159);
/* oklch */ color: oklch(45.6% 0.132 257.9);

Tailwind

colors: {
  custom: {
    50: '#7084bc',
    500: '#21559f',
    950: '#000000',
  },
}

SCSS

$custom: #21559f;
$custom-light: #7084bc;
$custom-dark: #000000;

JSON

{
  "hex": "#21559f",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 159
  },
  "hsl": {
    "h": 215.238,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.4565,
    "c": 0.13228,
    "h": 257.9
  },
  "luminance": 0.09324
}

Semantic roles & 50–950 ramp

primary

#21559F

secondary

#C2975A

accent

#A33FE9

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #21559F

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

Preview Lab → · Contrast checker → · Palette generator →