#21375C#21375C

#21375C is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.8% C 0.071 H 260.3°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#21375C
RGB	rgb(33, 55, 92)
HSL	hsl(218, 47%, 25%)
HSV	hsv(218, 64%, 36%)
CMYK	cmyk(64.1%, 40.2%, 0%, 63.9%)
CIE-LAB	lab(23.09, 4.30, -24.76)
CIE-LCH	lch(23.09, 25.13, 279.86°)
OKLab	oklab(33.83% -0.0121 -0.0702)
OKLCH	oklch(33.83% 0.071 260.3)
XYZ	xyz(3.9245, 3.8281, 10.6552)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21375C #5C4621

analogous

#21555C #21375C #29215C

triadic

#21375C #5C2137 #375C21

tetradic

#21375C #5C2155 #5C4621 #215C29

square

#21375C #5C2155 #5C4621 #215C29

split-complementary

#21375C #5C2921 #555C21

monochromatic

#080D17 #111C2F #21375C #315289 #416DB6

Accessibility & contrast

On white

11.89

#21375C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#21375C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21375C

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21375C	#FFFFFF	#000000	##FFFFFF
##21375C	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273A5D

Deuteranopia (green-blind)

#1F355B

Tritanopia (blue-blind)

#003F45

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #21375c;
/* rgb */ color: rgb(33, 55, 92);
/* oklch */ color: oklch(33.8% 0.071 260.3);

Tailwind

colors: {
  custom: {
    50: '#626d8a',
    500: '#21375c',
    950: '#000000',
  },
}

SCSS

$custom: #21375c;
$custom-light: #626d8a;
$custom-dark: #000000;

JSON

{
  "hex": "#21375c",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 92
  },
  "hsl": {
    "h": 217.627,
    "s": 47.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.33829,
    "c": 0.07124,
    "h": 260.3
  },
  "luminance": 0.03828
}

Semantic roles & 50–950 ramp

primary

#21375C

secondary

#907649

accent

#A551D7

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05070C

muted

#7A7A7D

Preview Lab

Preview with #21375C

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

Preview Lab → · Contrast checker → · Palette generator →