#2437A7#2437A7

#2437A7 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.3% C 0.179 H 268.8°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#2437A7
RGB	rgb(36, 55, 167)
HSL	hsl(231, 65%, 40%)
HSV	hsv(231, 78%, 65%)
CMYK	cmyk(78.4%, 67.1%, 0%, 34.5%)
CIE-LAB	lab(29.15, 33.85, -61.99)
CIE-LCH	lch(29.15, 70.63, 298.63°)
OKLab	oklab(40.27% -0.0037 -0.1794)
OKLCH	oklch(40.27% 0.179 268.8)
XYZ	xyz(9.0664, 5.8964, 37.2120)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2437A7 #A79424

analogous

#2478A7 #2437A7 #5324A7

triadic

#2437A7 #A72437 #37A724

tetradic

#2437A7 #A72478 #A79424 #24A753

square

#2437A7 #A72478 #A79424 #24A753

split-complementary

#2437A7 #A75324 #78A724

monochromatic

#0E1642 #192675 #2437A7 #354CD3 #6778DE

Accessibility & contrast

On white

9.64

#2437A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2437A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2437A7

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2437A7	#FFFFFF	#000000	##FFFFFF
##2437A7	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAB

Deuteranopia (green-blind)

#003FA5

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2437a7;
/* rgb */ color: rgb(36, 55, 167);
/* oklch */ color: oklch(40.3% 0.179 268.8);

Tailwind

colors: {
  custom: {
    50: '#756ec2',
    500: '#2437a7',
    950: '#000000',
  },
}

SCSS

$custom: #2437a7;
$custom-light: #756ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#2437a7",
  "rgb": {
    "r": 36,
    "g": 55,
    "b": 167
  },
  "hsl": {
    "h": 231.298,
    "s": 64.532,
    "l": 39.804
  },
  "oklch": {
    "l": 0.40271,
    "c": 0.17946,
    "h": 268.8
  },
  "luminance": 0.05897
}

Semantic roles & 50–950 ramp

primary

#2437A7

secondary

#C4B663

accent

#CF40E8

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2437A7

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

Preview Lab → · Contrast checker → · Palette generator →