#21458B#21458B

#21458B is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.5% C 0.124 H 262.0°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#21458B
RGB	rgb(33, 69, 139)
HSL	hsl(220, 62%, 34%)
HSV	hsv(220, 76%, 55%)
CMYK	cmyk(76.3%, 50.4%, 0%, 45.5%)
CIE-LAB	lab(30.50, 13.19, -42.74)
CIE-LCH	lch(30.50, 44.73, 287.15°)
OKLab	oklab(40.53% -0.0173 -0.1228)
OKLCH	oklch(40.53% 0.124 262)
XYZ	xyz(7.4139, 6.4428, 25.2740)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21458B #8B6721

analogous

#217A8B #21458B #32218B

triadic

#21458B #8B2145 #458B21

tetradic

#21458B #8B217A #8B6721 #218B32

square

#21458B #8B217A #8B6721 #218B32

split-complementary

#21458B #8B3221 #7A8B21

monochromatic

#0A1428 #152C5A #21458B #2D5EBC #517ED6

Accessibility & contrast

On white

9.18

#21458B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#21458B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21458B

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21458B	#FFFFFF	#000000	##FFFFFF
##21458B	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4D8E

Deuteranopia (green-blind)

#00438A

Tritanopia (blue-blind)

#005661

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #21458b;
/* rgb */ color: rgb(33, 69, 139);
/* oklch */ color: oklch(40.5% 0.124 262.0);

Tailwind

colors: {
  custom: {
    50: '#6c78ad',
    500: '#21458b',
    950: '#000000',
  },
}

SCSS

$custom: #21458b;
$custom-light: #6c78ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21458b",
  "rgb": {
    "r": 33,
    "g": 69,
    "b": 139
  },
  "hsl": {
    "h": 219.623,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40531,
    "c": 0.12398,
    "h": 262
  },
  "luminance": 0.06444
}

Semantic roles & 50–950 ramp

primary

#21458B

secondary

#B9954F

accent

#AE43E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #21458B

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

Preview Lab → · Contrast checker → · Palette generator →