#37307F#37307F

#37307F is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.129 H 282.0°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#37307F
RGB	rgb(55, 48, 127)
HSL	hsl(245, 45%, 34%)
HSV	hsv(245, 62%, 50%)
CMYK	cmyk(56.7%, 62.2%, 0%, 50.2%)
CIE-LAB	lab(25.13, 26.78, -43.89)
CIE-LCH	lch(25.13, 51.41, 301.39°)
OKLab	oklab(36.56% 0.0267 -0.1259)
OKLCH	oklch(36.56% 0.129 282)
XYZ	xyz(6.4621, 4.4580, 20.5945)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37307F #787F30

analogous

#30517F #37307F #5F307F

triadic

#37307F #7F3730 #307F37

tetradic

#37307F #7F3051 #787F30 #307F5F

square

#37307F #7F3051 #787F30 #307F5F

split-complementary

#37307F #7F5F30 #517F30

monochromatic

#110E26 #241F53 #37307F #4A41AB #6D65C5

Accessibility & contrast

On white

11.10

#37307F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#37307F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37307F

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37307F	#FFFFFF	#000000	##FFFFFF
##37307F	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E82

Deuteranopia (green-blind)

#00397D

Tritanopia (blue-blind)

#154352

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #37307f;
/* rgb */ color: rgb(55, 48, 127);
/* oklch */ color: oklch(36.6% 0.129 282.0);

Tailwind

colors: {
  custom: {
    50: '#7568a5',
    500: '#37307f',
    950: '#000000',
  },
}

SCSS

$custom: #37307f;
$custom-light: #7568a5;
$custom-dark: #000000;

JSON

{
  "hex": "#37307f",
  "rgb": {
    "r": 55,
    "g": 48,
    "b": 127
  },
  "hsl": {
    "h": 245.316,
    "s": 45.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.36564,
    "c": 0.12868,
    "h": 282
  },
  "luminance": 0.04458
}

Semantic roles & 50–950 ramp

primary

#37307F

secondary

#A5AC5F

accent

#D553C9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #37307F

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

Preview Lab → · Contrast checker → · Palette generator →