#2137A6#2137A6

#2137A6 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.0% C 0.179 H 268.0°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#2137A6
RGB	rgb(33, 55, 166)
HSL	hsl(230, 67%, 39%)
HSV	hsv(230, 80%, 65%)
CMYK	cmyk(80.1%, 66.9%, 0%, 34.9%)
CIE-LAB	lab(28.92, 33.20, -61.76)
CIE-LCH	lch(28.92, 70.12, 298.26°)
OKLab	oklab(40.04% -0.0064 -0.1788)
OKLCH	oklch(40.04% 0.179 268)
XYZ	xyz(8.8739, 5.8079, 36.7223)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2137A6 #A69021

analogous

#217AA6 #2137A6 #4E21A6

triadic

#2137A6 #A62137 #37A621

tetradic

#2137A6 #A6217A #A69021 #21A64E

square

#2137A6 #A6217A #A69021 #21A64E

split-complementary

#2137A6 #A64E21 #7AA621

monochromatic

#0D1540 #172673 #2137A6 #2F4AD6 #6277E0

Accessibility & contrast

On white

9.71

#2137A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2137A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2137A6

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2137A6	#FFFFFF	#000000	##FFFFFF
##2137A6	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA9

Deuteranopia (green-blind)

#003EA4

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2137a6;
/* rgb */ color: rgb(33, 55, 166);
/* oklch */ color: oklch(40.0% 0.179 268.0);

Tailwind

colors: {
  custom: {
    50: '#746ec1',
    500: '#2137a6',
    950: '#000000',
  },
}

SCSS

$custom: #2137a6;
$custom-light: #746ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#2137a6",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 166
  },
  "hsl": {
    "h": 230.075,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40039,
    "c": 0.17894,
    "h": 268
  },
  "luminance": 0.05809
}

Semantic roles & 50–950 ramp

primary

#2137A6

secondary

#C5B45E

accent

#CD3EEA

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2137A6

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

Preview Lab → · Contrast checker → · Palette generator →