#21398A#21398A

#21398A is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.8% C 0.138 H 267.0°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#21398A
RGB	rgb(33, 57, 138)
HSL	hsl(226, 61%, 34%)
HSV	hsv(226, 76%, 54%)
CMYK	cmyk(76.1%, 58.7%, 0%, 45.9%)
CIE-LAB	lab(26.97, 21.08, -47.84)
CIE-LCH	lch(26.97, 52.27, 293.78°)
OKLab	oklab(37.83% -0.0073 -0.138)
OKLCH	oklch(37.83% 0.138 267)
XYZ	xyz(6.6762, 5.0838, 24.6693)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21398A #8A7221

analogous

#216D8A #21398A #3D218A

triadic

#21398A #8A2139 #398A21

tetradic

#21398A #8A216D #8A7221 #218A3D

square

#21398A #8A216D #8A7221 #218A3D

split-complementary

#21398A #8A3D21 #6D8A21

monochromatic

#091027 #152559 #21398A #2D4DBB #506FD5

Accessibility & contrast

On white

10.41

#21398A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#21398A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21398A

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21398A	#FFFFFF	#000000	##FFFFFF
##21398A	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458D

Deuteranopia (green-blind)

#003B88

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21398a;
/* rgb */ color: rgb(33, 57, 138);
/* oklch */ color: oklch(37.8% 0.138 267.0);

Tailwind

colors: {
  custom: {
    50: '#6d6fad',
    500: '#21398a',
    950: '#000000',
  },
}

SCSS

$custom: #21398a;
$custom-light: #6d6fad;
$custom-dark: #000000;

JSON

{
  "hex": "#21398a",
  "rgb": {
    "r": 33,
    "g": 57,
    "b": 138
  },
  "hsl": {
    "h": 226.286,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37832,
    "c": 0.13819,
    "h": 267
  },
  "luminance": 0.05085
}

Semantic roles & 50–950 ramp

primary

#21398A

secondary

#B9A04E

accent

#C043E5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #21398A

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

Preview Lab → · Contrast checker → · Palette generator →