#213FA8#213FA8

#213FA8 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.7% C 0.172 H 266.4°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#213FA8
RGB	rgb(33, 63, 168)
HSL	hsl(227, 67%, 39%)
HSV	hsv(227, 80%, 66%)
CMYK	cmyk(80.4%, 62.5%, 0%, 34.1%)
CIE-LAB	lab(31.12, 28.68, -59.36)
CIE-LCH	lch(31.12, 65.92, 295.79°)
OKLab	oklab(41.72% -0.0109 -0.1717)
OKLCH	oklch(41.72% 0.172 266.4)
XYZ	xyz(9.4701, 6.7044, 37.8332)
Luminance	0.0670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213FA8 #A88A21

analogous

#2182A8 #213FA8 #4721A8

triadic

#213FA8 #A8213F #3FA821

tetradic

#213FA8 #A82182 #A88A21 #21A847

square

#213FA8 #A82182 #A88A21 #21A847

split-complementary

#213FA8 #A84721 #82A821

monochromatic

#0D1942 #172C75 #213FA8 #3055D6 #637FE0

Accessibility & contrast

On white

8.97

#213FA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#213FA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213FA8

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213FA8	#FFFFFF	#000000	##FFFFFF
##213FA8	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AB

Deuteranopia (green-blind)

#0043A6

Tritanopia (blue-blind)

#005A6D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #213fa8;
/* rgb */ color: rgb(33, 63, 168);
/* oklch */ color: oklch(41.7% 0.172 266.4);

Tailwind

colors: {
  custom: {
    50: '#7473c3',
    500: '#213fa8',
    950: '#000000',
  },
}

SCSS

$custom: #213fa8;
$custom-light: #7473c3;
$custom-dark: #000000;

JSON

{
  "hex": "#213fa8",
  "rgb": {
    "r": 33,
    "g": 63,
    "b": 168
  },
  "hsl": {
    "h": 226.667,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41717,
    "c": 0.17205,
    "h": 266.4
  },
  "luminance": 0.06705
}

Semantic roles & 50–950 ramp

primary

#213FA8

secondary

#C5AF5F

accent

#C43EEA

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #213FA8

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

Preview Lab → · Contrast checker → · Palette generator →