#37459B#37459B

#37459B is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.9% C 0.140 H 272.2°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#37459B
RGB	rgb(55, 69, 155)
HSL	hsl(232, 48%, 41%)
HSV	hsv(232, 65%, 61%)
CMYK	cmyk(64.5%, 55.5%, 0%, 39.2%)
CIE-LAB	lab(32.78, 22.76, -48.78)
CIE-LCH	lch(32.78, 53.83, 295.01°)
OKLab	oklab(42.92% 0.0053 -0.1401)
OKLCH	oklch(42.92% 0.14 272.2)
XYZ	xyz(9.6181, 7.4342, 31.9321)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37459B #9B8D37

analogous

#37779B #37459B #5B379B

triadic

#37459B #9B3745 #459B37

tetradic

#37459B #9B3777 #9B8D37 #379B5B

square

#37459B #9B3777 #9B8D37 #379B5B

split-complementary

#37459B #9B5B37 #779B37

monochromatic

#171D41 #27316E #37459B #4F5FC0 #7C88D0

Accessibility & contrast

On white

8.44

#37459B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#37459B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37459B

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37459B	#FFFFFF	#000000	##FFFFFF
##37459B	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04529E

Deuteranopia (green-blind)

#004999

Tritanopia (blue-blind)

#005969

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #37459b;
/* rgb */ color: rgb(55, 69, 155);
/* oklch */ color: oklch(42.9% 0.140 272.2);

Tailwind

colors: {
  custom: {
    50: '#7978b9',
    500: '#37459b',
    950: '#000000',
  },
}

SCSS

$custom: #37459b;
$custom-light: #7978b9;
$custom-dark: #000000;

JSON

{
  "hex": "#37459b",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 155
  },
  "hsl": {
    "h": 231.6,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.42923,
    "c": 0.1402,
    "h": 272.2
  },
  "luminance": 0.07435
}

Semantic roles & 50–950 ramp

primary

#37459B

secondary

#BAB074

accent

#C451D7

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #37459B

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

Preview Lab → · Contrast checker → · Palette generator →