#21389D#21389D

#21389D is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.4% C 0.166 H 267.7°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#21389D
RGB	rgb(33, 56, 157)
HSL	hsl(229, 65%, 37%)
HSV	hsv(229, 79%, 62%)
CMYK	cmyk(79%, 64.3%, 0%, 38.4%)
CIE-LAB	lab(28.34, 29.14, -57.27)
CIE-LCH	lch(28.34, 64.25, 296.96°)
OKLab	oklab(39.36% -0.0065 -0.1657)
OKLCH	oklch(39.36% 0.166 267.7)
XYZ	xyz(8.1251, 5.5851, 32.5416)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21389D #9D8621

analogous

#21769D #21389D #48219D

triadic

#21389D #9D2138 #389D21

tetradic

#21389D #9D2176 #9D8621 #219D48

square

#21389D #9D2176 #9D8621 #219D48

split-complementary

#21389D #9D4821 #769D21

monochromatic

#0C1438 #16266A #21389D #2C4AD0 #5C74DD

Accessibility & contrast

On white

9.92

#21389D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#21389D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21389D

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21389D	#FFFFFF	#000000	##FFFFFF
##21389D	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A0

Deuteranopia (green-blind)

#003D9B

Tritanopia (blue-blind)

#005265

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #21389d;
/* rgb */ color: rgb(33, 56, 157);
/* oklch */ color: oklch(39.4% 0.166 267.7);

Tailwind

colors: {
  custom: {
    50: '#716ebb',
    500: '#21389d',
    950: '#000000',
  },
}

SCSS

$custom: #21389d;
$custom-light: #716ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#21389d",
  "rgb": {
    "r": 33,
    "g": 56,
    "b": 157
  },
  "hsl": {
    "h": 228.871,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39357,
    "c": 0.1658,
    "h": 267.7
  },
  "luminance": 0.05586
}

Semantic roles & 50–950 ramp

primary

#21389D

secondary

#C1AE59

accent

#C940E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #21389D

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

Preview Lab → · Contrast checker → · Palette generator →