#37397D#37397D

#37397D is a dark, moderate blue. Relative luminance 0.052; OKLCH L 38.2% C 0.113 H 278.3°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#37397D
RGB	rgb(55, 57, 125)
HSL	hsl(238, 39%, 35%)
HSV	hsv(238, 56%, 49%)
CMYK	cmyk(56%, 54.4%, 0%, 51%)
CIE-LAB	lab(27.35, 20.10, -39.05)
CIE-LCH	lch(27.35, 43.91, 297.24°)
OKLab	oklab(38.16% 0.0164 -0.1116)
OKLCH	oklch(38.16% 0.113 278.3)
XYZ	xyz(6.7392, 5.2187, 20.0503)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37397D #7D7B37

analogous

#375C7D #37397D #58377D

triadic

#37397D #7D3739 #397D37

tetradic

#37397D #7D375C #7D7B37 #377D58

square

#37397D #7D375C #7D7B37 #377D58

split-complementary

#37397D #7D5837 #5C7D37

monochromatic

#121228 #242652 #37397D #4A4CA7 #6F71C0

Accessibility & contrast

On white

10.27

#37397D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#37397D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37397D

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37397D	#FFFFFF	#000000	##FFFFFF
##37397D	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14437F

Deuteranopia (green-blind)

#083E7C

Tritanopia (blue-blind)

#164855

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #37397d;
/* rgb */ color: rgb(55, 57, 125);
/* oklch */ color: oklch(38.2% 0.113 278.3);

Tailwind

colors: {
  custom: {
    50: '#746fa3',
    500: '#37397d',
    950: '#000000',
  },
}

SCSS

$custom: #37397d;
$custom-light: #746fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#37397d",
  "rgb": {
    "r": 55,
    "g": 57,
    "b": 125
  },
  "hsl": {
    "h": 238.286,
    "s": 38.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.38163,
    "c": 0.11277,
    "h": 278.3
  },
  "luminance": 0.05219
}

Semantic roles & 50–950 ramp

primary

#37397D

secondary

#A8A667

accent

#CB59CF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #37397D

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

Preview Lab → · Contrast checker → · Palette generator →