#21188E#21188E

#21188E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.7% C 0.180 H 273.4°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#21188E
RGB	rgb(33, 24, 142)
HSL	hsl(245, 71%, 33%)
HSV	hsv(245, 83%, 56%)
CMYK	cmyk(76.8%, 83.1%, 0%, 44.3%)
CIE-LAB	lab(19.76, 43.11, -62.18)
CIE-LCH	lch(19.76, 75.67, 304.74°)
OKLab	oklab(32.73% 0.0107 -0.1799)
OKLCH	oklch(32.73% 0.18 273.4)
XYZ	xyz(5.8347, 2.9290, 25.8438)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21188E #858E18

analogous

#184A8E #21188E #5C188E

triadic

#21188E #8E2118 #188E21

tetradic

#21188E #8E184A #858E18 #188E5C

square

#21188E #8E184A #858E18 #188E5C

split-complementary

#21188E #8E5C18 #4A8E18

monochromatic

#090625 #150F5A #21188E #2D21C2 #4D41DF

Accessibility & contrast

On white

13.24

#21188E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#21188E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21188E

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21188E	#FFFFFF	#000000	##FFFFFF
##21188E	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#002A8C

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #21188e;
/* rgb */ color: rgb(33, 24, 142);
/* oklch */ color: oklch(32.7% 0.180 273.4);

Tailwind

colors: {
  custom: {
    50: '#7159b0',
    500: '#21188e',
    950: '#000000',
  },
}

SCSS

$custom: #21188e;
$custom-light: #7159b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21188e",
  "rgb": {
    "r": 33,
    "g": 24,
    "b": 142
  },
  "hsl": {
    "h": 244.576,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32729,
    "c": 0.18019,
    "h": 273.4
  },
  "luminance": 0.0293
}

Semantic roles & 50–950 ramp

primary

#21188E

secondary

#B6C042

accent

#EE3AE0

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #21188E

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

Preview Lab → · Contrast checker → · Palette generator →