#21375D#21375D

#21375D is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.9% C 0.073 H 260.7°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#21375D
RGB	rgb(33, 55, 93)
HSL	hsl(218, 48%, 25%)
HSV	hsv(218, 65%, 36%)
CMYK	cmyk(64.5%, 40.9%, 0%, 63.5%)
CIE-LAB	lab(23.15, 4.69, -25.32)
CIE-LCH	lch(23.15, 25.75, 280.49°)
OKLab	oklab(33.89% -0.0118 -0.0718)
OKLCH	oklch(33.89% 0.073 260.7)
XYZ	xyz(3.9685, 3.8457, 10.8870)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21375D #5D4721

analogous

#21555D #21375D #29215D

triadic

#21375D #5D2137 #375D21

tetradic

#21375D #5D2155 #5D4721 #215D29

square

#21375D #5D2155 #5D4721 #215D29

split-complementary

#21375D #5D2921 #555D21

monochromatic

#080D17 #111C30 #21375D #31528A #416CB7

Accessibility & contrast

On white

11.87

#21375D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#21375D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21375D

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21375D	#FFFFFF	#000000	##FFFFFF
##21375D	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273A5F

Deuteranopia (green-blind)

#1F355C

Tritanopia (blue-blind)

#004045

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #21375d;
/* rgb */ color: rgb(33, 55, 93);
/* oklch */ color: oklch(33.9% 0.073 260.7);

Tailwind

colors: {
  custom: {
    50: '#626d8b',
    500: '#21375d',
    950: '#000000',
  },
}

SCSS

$custom: #21375d;
$custom-light: #626d8b;
$custom-dark: #000000;

JSON

{
  "hex": "#21375d",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 93
  },
  "hsl": {
    "h": 218,
    "s": 47.619,
    "l": 24.706
  },
  "oklch": {
    "l": 0.33895,
    "c": 0.07281,
    "h": 260.7
  },
  "luminance": 0.03846
}

Semantic roles & 50–950 ramp

primary

#21375D

secondary

#917749

accent

#A651D7

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05070C

muted

#7A7A7D

Preview Lab

Preview with #21375D

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

Preview Lab → · Contrast checker → · Palette generator →