#2A37B3#2A37B3

#2A37B3 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.7% C 0.193 H 270.3°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#2A37B3
RGB	rgb(42, 55, 179)
HSL	hsl(234, 62%, 43%)
HSV	hsv(234, 77%, 70%)
CMYK	cmyk(76.5%, 69.3%, 0%, 29.8%)
CIE-LAB	lab(30.59, 38.76, -66.79)
CIE-LCH	lch(30.59, 77.23, 300.13°)
OKLab	oklab(41.74% 0.0011 -0.1933)
OKLCH	oklch(41.74% 0.193 270.3)
XYZ	xyz(10.4549, 6.4781, 43.3385)
Luminance	0.0648 (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

#2A37B3 #B3A62A

analogous

#2A7BB3 #2A37B3 #622AB3

triadic

#2A37B3 #B32A37 #37B32A

tetradic

#2A37B3 #B32A7B #B3A62A #2AB362

square

#2A37B3 #B32A7B #B3A62A #2AB362

split-complementary

#2A37B3 #B3622A #7BB32A

monochromatic

#131950 #1E2881 #2A37B3 #4654D4 #7882DF

Accessibility & contrast

On white

9.15

#2A37B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#2A37B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37B3

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37B3	#FFFFFF	#000000	##FFFFFF
##2A37B3	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB7

Deuteranopia (green-blind)

#0041B1

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2a37b3;
/* rgb */ color: rgb(42, 55, 179);
/* oklch */ color: oklch(41.7% 0.193 270.3);

Tailwind

colors: {
  custom: {
    50: '#7a6ecb',
    500: '#2a37b3',
    950: '#000000',
  },
}

SCSS

$custom: #2a37b3;
$custom-light: #7a6ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37b3",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 179
  },
  "hsl": {
    "h": 234.307,
    "s": 61.991,
    "l": 43.333
  },
  "oklch": {
    "l": 0.41744,
    "c": 0.19334,
    "h": 270.3
  },
  "luminance": 0.06479
}

Semantic roles & 50–950 ramp

primary

#2A37B3

secondary

#C7BF72

accent

#D643E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2A37B3

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

Preview Lab → · Contrast checker → · Palette generator →