#21439B#21439B

#21439B is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.4% C 0.149 H 264.6°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#21439B
RGB	rgb(33, 67, 155)
HSL	hsl(223, 65%, 37%)
HSV	hsv(223, 79%, 61%)
CMYK	cmyk(78.7%, 56.8%, 0%, 39.2%)
CIE-LAB	lab(31.12, 20.91, -51.52)
CIE-LCH	lch(31.12, 55.60, 292.09°)
OKLab	oklab(41.38% -0.0139 -0.1486)
OKLCH	oklch(41.38% 0.149 264.6)
XYZ	xyz(8.5487, 6.7032, 31.8473)
Luminance	0.0670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21439B #9B7921

analogous

#21809B #21439B #3C219B

triadic

#21439B #9B2143 #439B21

tetradic

#21439B #9B2180 #9B7921 #219B3C

square

#21439B #9B2180 #9B7921 #219B3C

split-complementary

#21439B #9B3C21 #809B21

monochromatic

#0C1736 #162D69 #21439B #2C59CD #5A7FDC

Accessibility & contrast

On white

8.97

#21439B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#21439B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21439B

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21439B	#FFFFFF	#000000	##FFFFFF
##21439B	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9E

Deuteranopia (green-blind)

#004499

Tritanopia (blue-blind)

#005968

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #21439b;
/* rgb */ color: rgb(33, 67, 155);
/* oklch */ color: oklch(41.4% 0.149 264.6);

Tailwind

colors: {
  custom: {
    50: '#7076b9',
    500: '#21439b',
    950: '#000000',
  },
}

SCSS

$custom: #21439b;
$custom-light: #7076b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21439b",
  "rgb": {
    "r": 33,
    "g": 67,
    "b": 155
  },
  "hsl": {
    "h": 223.279,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.41379,
    "c": 0.14929,
    "h": 264.6
  },
  "luminance": 0.06704
}

Semantic roles & 50–950 ramp

primary

#21439B

secondary

#C0A358

accent

#B940E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #21439B

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

Preview Lab → · Contrast checker → · Palette generator →