#21389C#21389C

#21389C is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.3% C 0.164 H 267.7°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#21389C
RGB	rgb(33, 56, 156)
HSL	hsl(229, 65%, 37%)
HSV	hsv(229, 79%, 61%)
CMYK	cmyk(78.8%, 64.1%, 0%, 38.8%)
CIE-LAB	lab(28.25, 28.75, -56.81)
CIE-LCH	lch(28.25, 63.67, 296.85°)
OKLab	oklab(39.26% -0.0065 -0.1643)
OKLCH	oklch(39.26% 0.164 267.7)
XYZ	xyz(8.0400, 5.5511, 32.0938)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21389C #9C8521

analogous

#21769C #21389C #47219C

triadic

#21389C #9C2138 #389C21

tetradic

#21389C #9C2176 #9C8521 #219C47

square

#21389C #9C2176 #9C8521 #219C47

split-complementary

#21389C #9C4721 #769C21

monochromatic

#0C1437 #162669 #21389C #2C4ACF #5B73DC

Accessibility & contrast

On white

9.95

#21389C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#21389C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21389C

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21389C	#FFFFFF	#000000	##FFFFFF
##21389C	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499F

Deuteranopia (green-blind)

#003D9A

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #21389c;
/* rgb */ color: rgb(33, 56, 156);
/* oklch */ color: oklch(39.3% 0.164 267.7);

Tailwind

colors: {
  custom: {
    50: '#716eba',
    500: '#21389c',
    950: '#000000',
  },
}

SCSS

$custom: #21389c;
$custom-light: #716eba;
$custom-dark: #000000;

JSON

{
  "hex": "#21389c",
  "rgb": {
    "r": 33,
    "g": 56,
    "b": 156
  },
  "hsl": {
    "h": 228.78,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.39263,
    "c": 0.16445,
    "h": 267.7
  },
  "luminance": 0.05552
}

Semantic roles & 50–950 ramp

primary

#21389C

secondary

#C1AD58

accent

#C940E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #21389C

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

Preview Lab → · Contrast checker → · Palette generator →