#2B37A6#2B37A6

#2B37A6 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.5% C 0.176 H 271.1°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#2B37A6
RGB	rgb(43, 55, 166)
HSL	hsl(234, 59%, 41%)
HSV	hsv(234, 74%, 65%)
CMYK	cmyk(74.1%, 66.9%, 0%, 34.9%)
CIE-LAB	lab(29.41, 34.21, -60.95)
CIE-LCH	lch(29.41, 69.89, 299.30°)
OKLab	oklab(40.53% 0.0034 -0.1762)
OKLCH	oklch(40.53% 0.176 271.1)
XYZ	xyz(9.2430, 5.9982, 36.7396)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B37A6 #A69A2B

analogous

#2B74A6 #2B37A6 #5C2BA6

triadic

#2B37A6 #A62B37 #37A62B

tetradic

#2B37A6 #A62B74 #A69A2B #2BA65C

square

#2B37A6 #A62B74 #A69A2B #2BA65C

split-complementary

#2B37A6 #A65C2B #74A62B

monochromatic

#121745 #1E2775 #2B37A6 #414ECE #717BDA

Accessibility & contrast

On white

9.55

#2B37A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2B37A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B37A6

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B37A6	#FFFFFF	#000000	##FFFFFF
##2B37A6	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA9

Deuteranopia (green-blind)

#0040A4

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b37a6;
/* rgb */ color: rgb(43, 55, 166);
/* oklch */ color: oklch(40.5% 0.176 271.1);

Tailwind

colors: {
  custom: {
    50: '#776ec1',
    500: '#2b37a6',
    950: '#000000',
  },
}

SCSS

$custom: #2b37a6;
$custom-light: #776ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b37a6",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 166
  },
  "hsl": {
    "h": 234.146,
    "s": 58.852,
    "l": 40.98
  },
  "oklch": {
    "l": 0.40527,
    "c": 0.17627,
    "h": 271.1
  },
  "luminance": 0.05999
}

Semantic roles & 50–950 ramp

primary

#2B37A6

secondary

#C1B96B

accent

#D346E2

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2B37A6

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

Preview Lab → · Contrast checker → · Palette generator →