#213F79#213F79

#213F79 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.8% C 0.105 H 262.1°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#213F79
RGB	rgb(33, 63, 121)
HSL	hsl(220, 57%, 30%)
HSV	hsv(220, 73%, 47%)
CMYK	cmyk(72.7%, 47.9%, 0%, 52.5%)
CIE-LAB	lab(27.46, 10.15, -36.42)
CIE-LCH	lch(27.46, 37.81, 285.57°)
OKLab	oklab(37.8% -0.0146 -0.1043)
OKLCH	oklch(37.8% 0.105 262.1)
XYZ	xyz(5.8547, 5.2582, 18.7918)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213F79 #795B21

analogous

#216B79 #213F79 #2F2179

triadic

#213F79 #79213F #3F7921

tetradic

#213F79 #79216B #795B21 #21792F

square

#213F79 #79216B #795B21 #21792F

split-complementary

#213F79 #792F21 #6B7921

monochromatic

#070D19 #142649 #213F79 #2E58A9 #4775CD

Accessibility & contrast

On white

10.23

#213F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#213F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213F79

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213F79	#FFFFFF	#000000	##FFFFFF
##213F79	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21457B

Deuteranopia (green-blind)

#0F3D78

Tritanopia (blue-blind)

#004D56

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #213f79;
/* rgb */ color: rgb(33, 63, 121);
/* oklch */ color: oklch(37.8% 0.105 262.1);

Tailwind

colors: {
  custom: {
    50: '#6873a0',
    500: '#213f79',
    950: '#000000',
  },
}

SCSS

$custom: #213f79;
$custom-light: #6873a0;
$custom-dark: #000000;

JSON

{
  "hex": "#213f79",
  "rgb": {
    "r": 33,
    "g": 63,
    "b": 121
  },
  "hsl": {
    "h": 219.545,
    "s": 57.143,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37798,
    "c": 0.10532,
    "h": 262.1
  },
  "luminance": 0.05259
}

Semantic roles & 50–950 ramp

primary

#213F79

secondary

#AC8B4A

accent

#AC47E0

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #213F79

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

Preview Lab → · Contrast checker → · Palette generator →