#213B9F#213B9F

#213B9F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.165 H 267.1°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#213B9F
RGB	rgb(33, 59, 159)
HSL	hsl(228, 66%, 38%)
HSV	hsv(228, 79%, 62%)
CMYK	cmyk(79.2%, 62.9%, 0%, 37.6%)
CIE-LAB	lab(29.29, 27.89, -56.92)
CIE-LCH	lch(29.29, 63.39, 296.11°)
OKLab	oklab(40.12% -0.0084 -0.1646)
OKLCH	oklch(40.12% 0.165 267.1)
XYZ	xyz(8.4470, 5.9535, 33.4981)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213B9F #9F8521

analogous

#217A9F #213B9F #46219F

triadic

#213B9F #9F213B #3B9F21

tetradic

#213B9F #9F217A #9F8521 #219F46

square

#213B9F #9F217A #9F8521 #219F46

split-complementary

#213B9F #9F4621 #7A9F21

monochromatic

#0C153A #16286C #213B9F #2C4ED2 #5D78DD

Accessibility & contrast

On white

9.59

#213B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#213B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213B9F

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213B9F	#FFFFFF	#000000	##FFFFFF
##213B9F	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA2

Deuteranopia (green-blind)

#003F9D

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #213b9f;
/* rgb */ color: rgb(33, 59, 159);
/* oklch */ color: oklch(40.1% 0.165 267.1);

Tailwind

colors: {
  custom: {
    50: '#7270bc',
    500: '#213b9f',
    950: '#000000',
  },
}

SCSS

$custom: #213b9f;
$custom-light: #7270bc;
$custom-dark: #000000;

JSON

{
  "hex": "#213b9f",
  "rgb": {
    "r": 33,
    "g": 59,
    "b": 159
  },
  "hsl": {
    "h": 227.619,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40118,
    "c": 0.16483,
    "h": 267.1
  },
  "luminance": 0.05954
}

Semantic roles & 50–950 ramp

primary

#213B9F

secondary

#C2AC5A

accent

#C63FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #213B9F

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

Preview Lab → · Contrast checker → · Palette generator →