#21409B#21409B

#21409B is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.8% C 0.153 H 265.6°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#21409B
RGB	rgb(33, 64, 155)
HSL	hsl(225, 65%, 37%)
HSV	hsv(225, 79%, 61%)
CMYK	cmyk(78.7%, 58.7%, 0%, 39.2%)
CIE-LAB	lab(30.29, 22.96, -52.86)
CIE-LCH	lch(30.29, 57.63, 293.47°)
OKLab	oklab(40.76% -0.0118 -0.1526)
OKLCH	oklch(40.76% 0.153 265.6)
XYZ	xyz(8.3749, 6.3557, 31.7894)
Luminance	0.0636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21409B #9B7C21

analogous

#217D9B #21409B #3F219B

triadic

#21409B #9B2140 #409B21

tetradic

#21409B #9B217D #9B7C21 #219B3F

square

#21409B #9B217D #9B7C21 #219B3F

split-complementary

#21409B #9B3F21 #7D9B21

monochromatic

#0C1636 #162B69 #21409B #2C55CD #5A7BDC

Accessibility & contrast

On white

9.25

#21409B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#21409B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21409B

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21409B	#FFFFFF	#000000	##FFFFFF
##21409B	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9E

Deuteranopia (green-blind)

#004299

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #21409b;
/* rgb */ color: rgb(33, 64, 155);
/* oklch */ color: oklch(40.8% 0.153 265.6);

Tailwind

colors: {
  custom: {
    50: '#7074b9',
    500: '#21409b',
    950: '#000000',
  },
}

SCSS

$custom: #21409b;
$custom-light: #7074b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21409b",
  "rgb": {
    "r": 33,
    "g": 64,
    "b": 155
  },
  "hsl": {
    "h": 224.754,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40756,
    "c": 0.1531,
    "h": 265.6
  },
  "luminance": 0.06357
}

Semantic roles & 50–950 ramp

primary

#21409B

secondary

#C0A658

accent

#BD40E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #21409B

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

Preview Lab → · Contrast checker → · Palette generator →