#2337B2#2337B2

#2337B2 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.3% C 0.194 H 268.4°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#2337B2
RGB	rgb(35, 55, 178)
HSL	hsl(232, 67%, 42%)
HSV	hsv(232, 80%, 70%)
CMYK	cmyk(80.3%, 69.1%, 0%, 30.2%)
CIE-LAB	lab(30.16, 37.78, -66.91)
CIE-LCH	lch(30.16, 76.84, 299.45°)
OKLab	oklab(41.32% -0.0055 -0.1938)
OKLCH	oklch(41.32% 0.194 268.4)
XYZ	xyz(10.0924, 6.3029, 42.7955)
Luminance	0.0630 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2337B2 #B29E23

analogous

#237FB2 #2337B2 #5623B2

triadic

#2337B2 #B22337 #37B223

tetradic

#2337B2 #B2237F #B29E23 #23B256

square

#2337B2 #B2237F #B29E23 #23B256

split-complementary

#2337B2 #B25623 #7FB223

monochromatic

#0F174C #19277F #2337B2 #3A50D8 #6D7DE2

Accessibility & contrast

On white

9.29

#2337B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2337B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2337B2

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2337B2	#FFFFFF	#000000	##FFFFFF
##2337B2	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB6

Deuteranopia (green-blind)

#0040B0

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2337b2;
/* rgb */ color: rgb(35, 55, 178);
/* oklch */ color: oklch(41.3% 0.194 268.4);

Tailwind

colors: {
  custom: {
    50: '#786eca',
    500: '#2337b2',
    950: '#000000',
  },
}

SCSS

$custom: #2337b2;
$custom-light: #786eca;
$custom-dark: #000000;

JSON

{
  "hex": "#2337b2",
  "rgb": {
    "r": 35,
    "g": 55,
    "b": 178
  },
  "hsl": {
    "h": 231.608,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.41318,
    "c": 0.19389,
    "h": 268.4
  },
  "luminance": 0.06304
}

Semantic roles & 50–950 ramp

primary

#2337B2

secondary

#C9BB68

accent

#D23EEA

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2337B2

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

Preview Lab → · Contrast checker → · Palette generator →