#21407B#21407B

#21407B is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.2% C 0.107 H 261.8°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#21407B
RGB	rgb(33, 64, 123)
HSL	hsl(219, 58%, 31%)
HSV	hsv(219, 73%, 48%)
CMYK	cmyk(73.2%, 48%, 0%, 51.8%)
CIE-LAB	lab(27.90, 10.25, -36.98)
CIE-LCH	lch(27.90, 38.37, 285.49°)
OKLab	oklab(38.18% -0.0152 -0.1059)
OKLCH	oklch(38.18% 0.107 261.8)
XYZ	xyz(6.0345, 5.4196, 19.4631)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21407B #7B5C21

analogous

#216D7B #21407B #2F217B

triadic

#21407B #7B2140 #407B21

tetradic

#21407B #7B216D #7B5C21 #217B2F

square

#21407B #7B216D #7B5C21 #217B2F

split-complementary

#21407B #7B2F21 #6D7B21

monochromatic

#070E1A #14274B #21407B #2E59AB #4876CE

Accessibility & contrast

On white

10.08

#21407B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#21407B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21407B

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21407B	#FFFFFF	#000000	##FFFFFF
##21407B	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22467D

Deuteranopia (green-blind)

#0E3E7A

Tritanopia (blue-blind)

#004E57

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #21407b;
/* rgb */ color: rgb(33, 64, 123);
/* oklch */ color: oklch(38.2% 0.107 261.8);

Tailwind

colors: {
  custom: {
    50: '#6874a1',
    500: '#21407b',
    950: '#000000',
  },
}

SCSS

$custom: #21407b;
$custom-light: #6874a1;
$custom-dark: #000000;

JSON

{
  "hex": "#21407b",
  "rgb": {
    "r": 33,
    "g": 64,
    "b": 123
  },
  "hsl": {
    "h": 219.333,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.3818,
    "c": 0.107,
    "h": 261.8
  },
  "luminance": 0.0542
}

Semantic roles & 50–950 ramp

primary

#21407B

secondary

#AE8B4A

accent

#AC47E1

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #21407B

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

Preview Lab → · Contrast checker → · Palette generator →