#21377A#21377A

#21377A is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.1% C 0.117 H 266.7°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#21377A
RGB	rgb(33, 55, 122)
HSL	hsl(225, 57%, 30%)
HSV	hsv(225, 73%, 48%)
CMYK	cmyk(73%, 54.9%, 0%, 52.2%)
CIE-LAB	lab(25.14, 16.13, -40.79)
CIE-LCH	lch(25.14, 43.87, 291.58°)
OKLab	oklab(36.05% -0.0067 -0.1173)
OKLCH	oklch(36.05% 0.118 266.7)
XYZ	xyz(5.5050, 4.4603, 18.9794)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21377A #7A6421

analogous

#21637A #21377A #38217A

triadic

#21377A #7A2137 #377A21

tetradic

#21377A #7A2163 #7A6421 #217A38

square

#21377A #7A2163 #7A6421 #217A38

split-complementary

#21377A #7A3821 #637A21

monochromatic

#070C1A #14214A #21377A #2E4DAA #4869CD

Accessibility & contrast

On white

11.10

#21377A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#21377A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21377A

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21377A	#FFFFFF	#000000	##FFFFFF
##21377A	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09407C

Deuteranopia (green-blind)

#003879

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #21377a;
/* rgb */ color: rgb(33, 55, 122);
/* oklch */ color: oklch(36.1% 0.117 266.7);

Tailwind

colors: {
  custom: {
    50: '#696da1',
    500: '#21377a',
    950: '#000000',
  },
}

SCSS

$custom: #21377a;
$custom-light: #696da1;
$custom-dark: #000000;

JSON

{
  "hex": "#21377a",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 122
  },
  "hsl": {
    "h": 225.169,
    "s": 57.419,
    "l": 30.392
  },
  "oklch": {
    "l": 0.36052,
    "c": 0.1175,
    "h": 266.7
  },
  "luminance": 0.04461
}

Semantic roles & 50–950 ramp

primary

#21377A

secondary

#AD944A

accent

#BB47E1

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #21377A

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

Preview Lab → · Contrast checker → · Palette generator →