#37459E#37459E

#37459E is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.2% C 0.144 H 272.2°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#37459E
RGB	rgb(55, 69, 158)
HSL	hsl(232, 48%, 42%)
HSV	hsv(232, 65%, 62%)
CMYK	cmyk(65.2%, 56.3%, 0%, 38%)
CIE-LAB	lab(33.00, 23.84, -50.24)
CIE-LCH	lch(33.00, 55.61, 295.39°)
OKLab	oklab(43.16% 0.0055 -0.1444)
OKLCH	oklch(43.16% 0.144 272.2)
XYZ	xyz(9.8732, 7.5362, 33.2755)
Luminance	0.0754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37459E #9E9037

analogous

#37799E #37459E #5D379E

triadic

#37459E #9E3745 #459E37

tetradic

#37459E #9E3779 #9E9037 #379E5D

square

#37459E #9E3779 #9E9037 #379E5D

split-complementary

#37459E #9E5D37 #799E37

monochromatic

#171D43 #273171 #37459E #5060C2 #7D89D2

Accessibility & contrast

On white

8.38

#37459E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#37459E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37459E

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37459E	#FFFFFF	#000000	##FFFFFF
##37459E	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A1

Deuteranopia (green-blind)

#00499C

Tritanopia (blue-blind)

#005A6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #37459e;
/* rgb */ color: rgb(55, 69, 158);
/* oklch */ color: oklch(43.2% 0.144 272.2);

Tailwind

colors: {
  custom: {
    50: '#7978bb',
    500: '#37459e',
    950: '#000000',
  },
}

SCSS

$custom: #37459e;
$custom-light: #7978bb;
$custom-dark: #000000;

JSON

{
  "hex": "#37459e",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 158
  },
  "hsl": {
    "h": 231.845,
    "s": 48.357,
    "l": 41.765
  },
  "oklch": {
    "l": 0.4316,
    "c": 0.14448,
    "h": 272.2
  },
  "luminance": 0.07537
}

Semantic roles & 50–950 ramp

primary

#37459E

secondary

#BBB276

accent

#C550D8

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #37459E

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

Preview Lab → · Contrast checker → · Palette generator →