#2137A9#2137A9

#2137A9 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.3% C 0.183 H 268.0°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#2137A9
RGB	rgb(33, 55, 169)
HSL	hsl(230, 67%, 40%)
HSV	hsv(230, 80%, 66%)
CMYK	cmyk(80.5%, 67.5%, 0%, 33.7%)
CIE-LAB	lab(29.21, 34.31, -63.10)
CIE-LCH	lch(29.21, 71.83, 298.54°)
OKLab	oklab(40.34% -0.0065 -0.1827)
OKLCH	oklch(40.34% 0.183 268)
XYZ	xyz(9.1523, 5.9192, 38.1886)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2137A9 #A99321

analogous

#217BA9 #2137A9 #4F21A9

triadic

#2137A9 #A92137 #37A921

tetradic

#2137A9 #A9217B #A99321 #21A94F

square

#2137A9 #A9217B #A99321 #21A94F

split-complementary

#2137A9 #A94F21 #7BA921

monochromatic

#0D1643 #172676 #2137A9 #314BD7 #6478E1

Accessibility & contrast

On white

9.62

#2137A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2137A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2137A9

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2137A9	#FFFFFF	#000000	##FFFFFF
##2137A9	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAD

Deuteranopia (green-blind)

#003EA7

Tritanopia (blue-blind)

#00566B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2137a9;
/* rgb */ color: rgb(33, 55, 169);
/* oklch */ color: oklch(40.3% 0.183 268.0);

Tailwind

colors: {
  custom: {
    50: '#756ec4',
    500: '#2137a9',
    950: '#000000',
  },
}

SCSS

$custom: #2137a9;
$custom-light: #756ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#2137a9",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 169
  },
  "hsl": {
    "h": 230.294,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40335,
    "c": 0.18285,
    "h": 268
  },
  "luminance": 0.0592
}

Semantic roles & 50–950 ramp

primary

#2137A9

secondary

#C6B560

accent

#CE3EEA

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2137A9

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

Preview Lab → · Contrast checker → · Palette generator →