#213F8F#213F8F

#213F8F is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.5% C 0.138 H 265.1°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#213F8F
RGB	rgb(33, 63, 143)
HSL	hsl(224, 63%, 35%)
HSV	hsv(224, 77%, 56%)
CMYK	cmyk(76.9%, 55.9%, 0%, 43.9%)
CIE-LAB	lab(29.06, 18.91, -47.54)
CIE-LCH	lch(29.06, 51.16, 291.69°)
OKLab	oklab(39.53% -0.0118 -0.137)
OKLCH	oklch(39.53% 0.138 265.1)
XYZ	xyz(7.3609, 5.8607, 26.7246)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213F8F #8F7121

analogous

#21768F #213F8F #3A218F

triadic

#213F8F #8F213F #3F8F21

tetradic

#213F8F #8F2176 #8F7121 #218F3A

square

#213F8F #8F2176 #8F7121 #218F3A

split-complementary

#213F8F #8F3A21 #768F21

monochromatic

#0A132C #16295D #213F8F #2C55C1 #5377D7

Accessibility & contrast

On white

9.67

#213F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#213F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213F8F

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213F8F	#FFFFFF	#000000	##FFFFFF
##213F8F	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A92

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #213f8f;
/* rgb */ color: rgb(33, 63, 143);
/* oklch */ color: oklch(39.5% 0.138 265.1);

Tailwind

colors: {
  custom: {
    50: '#6d73b0',
    500: '#213f8f',
    950: '#000000',
  },
}

SCSS

$custom: #213f8f;
$custom-light: #6d73b0;
$custom-dark: #000000;

JSON

{
  "hex": "#213f8f",
  "rgb": {
    "r": 33,
    "g": 63,
    "b": 143
  },
  "hsl": {
    "h": 223.636,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.39527,
    "c": 0.1375,
    "h": 265.1
  },
  "luminance": 0.05862
}

Semantic roles & 50–950 ramp

primary

#213F8F

secondary

#BB9E51

accent

#B942E6

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #213F8F

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

Preview Lab → · Contrast checker → · Palette generator →