#21396D#21396D

#21396D is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.5% C 0.095 H 263.6°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#21396D
RGB	rgb(33, 57, 109)
HSL	hsl(221, 54%, 28%)
HSV	hsv(221, 70%, 43%)
CMYK	cmyk(69.7%, 47.7%, 0%, 57.3%)
CIE-LAB	lab(24.81, 9.56, -33.05)
CIE-LCH	lch(24.81, 34.41, 286.13°)
OKLab	oklab(35.5% -0.0105 -0.0945)
OKLCH	oklch(35.5% 0.095 263.6)
XYZ	xyz(4.8497, 4.3532, 15.0497)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21396D #6D5521

analogous

#215F6D #21396D #2F216D

triadic

#21396D #6D2139 #396D21

tetradic

#21396D #6D215F #6D5521 #216D2F

square

#21396D #6D215F #6D5521 #216D2F

split-complementary

#21396D #6D2F21 #5F6D21

monochromatic

#070C17 #13203E #21396D #2F529C #426CC6

Accessibility & contrast

On white

11.23

#21396D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#21396D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21396D

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21396D	#FFFFFF	#000000	##FFFFFF
##21396D	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3F6F

Deuteranopia (green-blind)

#12386C

Tritanopia (blue-blind)

#00454D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #21396d;
/* rgb */ color: rgb(33, 57, 109);
/* oklch */ color: oklch(35.5% 0.095 263.6);

Tailwind

colors: {
  custom: {
    50: '#666e97',
    500: '#21396d',
    950: '#000000',
  },
}

SCSS

$custom: #21396d;
$custom-light: #666e97;
$custom-dark: #000000;

JSON

{
  "hex": "#21396d",
  "rgb": {
    "r": 33,
    "g": 57,
    "b": 109
  },
  "hsl": {
    "h": 221.053,
    "s": 53.521,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35501,
    "c": 0.09508,
    "h": 263.6
  },
  "luminance": 0.04354
}

Semantic roles & 50–950 ramp

primary

#21396D

secondary

#A18549

accent

#AF4BDD

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #21396D

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

Preview Lab → · Contrast checker → · Palette generator →