#37307E#37307E

#37307E is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.5% C 0.127 H 282.1°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#37307E
RGB	rgb(55, 48, 126)
HSL	hsl(245, 45%, 34%)
HSV	hsv(245, 62%, 49%)
CMYK	cmyk(56.3%, 61.9%, 0%, 50.6%)
CIE-LAB	lab(25.05, 26.44, -43.39)
CIE-LCH	lch(25.05, 50.81, 301.36°)
OKLab	oklab(36.48% 0.0267 -0.1244)
OKLCH	oklch(36.48% 0.127 282.1)
XYZ	xyz(6.3972, 4.4321, 20.2530)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37307E #777E30

analogous

#30507E #37307E #5E307E

triadic

#37307E #7E3730 #307E37

tetradic

#37307E #7E3050 #777E30 #307E5E

square

#37307E #7E3050 #777E30 #307E5E

split-complementary

#37307E #7E5E30 #507E30

monochromatic

#100E25 #241F52 #37307E #4A41AA #6D64C4

Accessibility & contrast

On white

11.13

#37307E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#37307E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37307E

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37307E	#FFFFFF	#000000	##FFFFFF
##37307E	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E81

Deuteranopia (green-blind)

#00397C

Tritanopia (blue-blind)

#174352

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #37307e;
/* rgb */ color: rgb(55, 48, 126);
/* oklch */ color: oklch(36.5% 0.127 282.1);

Tailwind

colors: {
  custom: {
    50: '#7568a4',
    500: '#37307e',
    950: '#000000',
  },
}

SCSS

$custom: #37307e;
$custom-light: #7568a4;
$custom-dark: #000000;

JSON

{
  "hex": "#37307e",
  "rgb": {
    "r": 55,
    "g": 48,
    "b": 126
  },
  "hsl": {
    "h": 245.385,
    "s": 44.828,
    "l": 34.118
  },
  "oklch": {
    "l": 0.3648,
    "c": 0.12725,
    "h": 282.1
  },
  "luminance": 0.04432
}

Semantic roles & 50–950 ramp

primary

#37307E

secondary

#A4AB5F

accent

#D553C9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #37307E

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

Preview Lab → · Contrast checker → · Palette generator →