#21438F#21438F

#21438F is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.4% C 0.132 H 263.5°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#21438F
RGB	rgb(33, 67, 143)
HSL	hsl(221, 63%, 35%)
HSV	hsv(221, 77%, 56%)
CMYK	cmyk(76.9%, 53.1%, 0%, 43.9%)
CIE-LAB	lab(30.21, 16.16, -45.68)
CIE-LCH	lch(30.21, 48.45, 289.48°)
OKLab	oklab(40.4% -0.015 -0.1315)
OKLCH	oklch(40.4% 0.132 263.5)
XYZ	xyz(7.5905, 6.3200, 26.8011)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21438F #8F6D21

analogous

#217A8F #21438F #36218F

triadic

#21438F #8F2143 #438F21

tetradic

#21438F #8F217A #8F6D21 #218F36

square

#21438F #8F217A #8F6D21 #218F36

split-complementary

#21438F #8F3621 #7A8F21

monochromatic

#0A142C #162C5D #21438F #2C5AC1 #537CD7

Accessibility & contrast

On white

9.27

#21438F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#21438F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21438F

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21438F	#FFFFFF	#000000	##FFFFFF
##21438F	1.00	9.27	2.26	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104C92

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #21438f;
/* rgb */ color: rgb(33, 67, 143);
/* oklch */ color: oklch(40.4% 0.132 263.5);

Tailwind

colors: {
  custom: {
    50: '#6d76b0',
    500: '#21438f',
    950: '#000000',
  },
}

SCSS

$custom: #21438f;
$custom-light: #6d76b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21438f",
  "rgb": {
    "r": 33,
    "g": 67,
    "b": 143
  },
  "hsl": {
    "h": 221.455,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.40396,
    "c": 0.13232,
    "h": 263.5
  },
  "luminance": 0.06321
}

Semantic roles & 50–950 ramp

primary

#21438F

secondary

#BB9A51

accent

#B342E6

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #21438F

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

Preview Lab → · Contrast checker → · Palette generator →