#2437BD#2437BD

#2437BD is a dark, highly saturated blue. Relative luminance 0.068; OKLCH L 42.5% C 0.207 H 268.4°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#2437BD
RGB	rgb(36, 55, 189)
HSL	hsl(233, 68%, 44%)
HSV	hsv(233, 81%, 74%)
CMYK	cmyk(81%, 70.9%, 0%, 25.9%)
CIE-LAB	lab(31.30, 41.80, -71.55)
CIE-LCH	lch(31.30, 82.87, 300.29°)
OKLab	oklab(42.48% -0.0056 -0.2073)
OKLCH	oklch(42.48% 0.207 268.4)
XYZ	xyz(11.2759, 6.7802, 48.8487)
Luminance	0.0678 (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

#2437BD #BDAA24

analogous

#2484BD #2437BD #5E24BD

triadic

#2437BD #BD2437 #37BD24

tetradic

#2437BD #BD2484 #BDAA24 #24BD5E

square

#2437BD #BD2484 #BDAA24 #24BD5E

split-complementary

#2437BD #BD5E24 #84BD24

monochromatic

#101956 #1A288A #2437BD #4356DB #7684E5

Accessibility & contrast

On white

8.91

#2437BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#2437BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2437BD

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2437BD	#FFFFFF	#000000	##FFFFFF
##2437BD	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C1

Deuteranopia (green-blind)

#0042BB

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2437bd;
/* rgb */ color: rgb(36, 55, 189);
/* oklch */ color: oklch(42.5% 0.207 268.4);

Tailwind

colors: {
  custom: {
    50: '#7b6ed2',
    500: '#2437bd',
    950: '#000000',
  },
}

SCSS

$custom: #2437bd;
$custom-light: #7b6ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#2437bd",
  "rgb": {
    "r": 36,
    "g": 55,
    "b": 189
  },
  "hsl": {
    "h": 232.549,
    "s": 68,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42481,
    "c": 0.2074,
    "h": 268.4
  },
  "luminance": 0.06782
}

Semantic roles & 50–950 ramp

primary

#2437BD

secondary

#CCC170

accent

#D53DEB

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #2437BD

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

Preview Lab → · Contrast checker → · Palette generator →