#21387A#21387A

#21387A is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.3% C 0.116 H 266.2°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#21387A
RGB	rgb(33, 56, 122)
HSL	hsl(224, 57%, 30%)
HSV	hsv(224, 73%, 48%)
CMYK	cmyk(73%, 54.1%, 0%, 52.2%)
CIE-LAB	lab(25.43, 15.43, -40.32)
CIE-LCH	lch(25.43, 43.17, 290.94°)
OKLab	oklab(36.27% -0.0077 -0.1159)
OKLCH	oklch(36.27% 0.116 266.2)
XYZ	xyz(5.5530, 4.5563, 18.9954)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21387A #7A6321

analogous

#21647A #21387A #36217A

triadic

#21387A #7A2138 #387A21

tetradic

#21387A #7A2164 #7A6321 #217A36

square

#21387A #7A2164 #7A6321 #217A36

split-complementary

#21387A #7A3621 #647A21

monochromatic

#070C1A #14224A #21387A #2E4EAA #486ACD

Accessibility & contrast

On white

10.99

#21387A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#21387A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21387A

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21387A	#FFFFFF	#000000	##FFFFFF
##21387A	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D417C

Deuteranopia (green-blind)

#003879

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #21387a;
/* rgb */ color: rgb(33, 56, 122);
/* oklch */ color: oklch(36.3% 0.116 266.2);

Tailwind

colors: {
  custom: {
    50: '#696ea1',
    500: '#21387a',
    950: '#000000',
  },
}

SCSS

$custom: #21387a;
$custom-light: #696ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#21387a",
  "rgb": {
    "r": 33,
    "g": 56,
    "b": 122
  },
  "hsl": {
    "h": 224.494,
    "s": 57.419,
    "l": 30.392
  },
  "oklch": {
    "l": 0.36274,
    "c": 0.11615,
    "h": 266.2
  },
  "luminance": 0.04557
}

Semantic roles & 50–950 ramp

primary

#21387A

secondary

#AD934A

accent

#B947E1

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #21387A

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

Preview Lab → · Contrast checker → · Palette generator →