#213B74#213B74

#213B74 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.103 H 263.7°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#213B74
RGB	rgb(33, 59, 116)
HSL	hsl(221, 56%, 29%)
HSV	hsv(221, 72%, 45%)
CMYK	cmyk(71.6%, 49.1%, 0%, 54.5%)
CIE-LAB	lab(25.90, 10.94, -35.77)
CIE-LCH	lch(25.90, 37.40, 287.00°)
OKLab	oklab(36.49% -0.0114 -0.1024)
OKLCH	oklch(36.49% 0.103 263.7)
XYZ	xyz(5.3424, 4.7117, 17.1475)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213B74 #745A21

analogous

#216574 #213B74 #312174

triadic

#213B74 #74213B #3B7421

tetradic

#213B74 #742165 #745A21 #217431

square

#213B74 #742165 #745A21 #217431

split-complementary

#213B74 #743121 #657421

monochromatic

#070C18 #132344 #213B74 #2F53A4 #456FCA

Accessibility & contrast

On white

10.81

#213B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#213B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213B74

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213B74	#FFFFFF	#000000	##FFFFFF
##213B74	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4176

Deuteranopia (green-blind)

#0B3A73

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #213b74;
/* rgb */ color: rgb(33, 59, 116);
/* oklch */ color: oklch(36.5% 0.103 263.7);

Tailwind

colors: {
  custom: {
    50: '#67709c',
    500: '#213b74',
    950: '#000000',
  },
}

SCSS

$custom: #213b74;
$custom-light: #67709c;
$custom-dark: #000000;

JSON

{
  "hex": "#213b74",
  "rgb": {
    "r": 33,
    "g": 59,
    "b": 116
  },
  "hsl": {
    "h": 221.205,
    "s": 55.705,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36491,
    "c": 0.10308,
    "h": 263.7
  },
  "luminance": 0.04712
}

Semantic roles & 50–950 ramp

primary

#213B74

secondary

#A78A49

accent

#B049DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #213B74

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

Preview Lab → · Contrast checker → · Palette generator →