#37389B#37389B

#37389B is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.4% C 0.157 H 276.3°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#37389B
RGB	rgb(55, 56, 155)
HSL	hsl(239, 48%, 41%)
HSV	hsv(239, 65%, 61%)
CMYK	cmyk(64.5%, 63.9%, 0%, 39.2%)
CIE-LAB	lab(29.43, 31.27, -54.22)
CIE-LCH	lch(29.43, 62.59, 299.97°)
OKLab	oklab(40.44% 0.0173 -0.1562)
OKLCH	oklch(40.44% 0.157 276.3)
XYZ	xyz(8.9042, 6.0064, 31.6941)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.46

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37389B #9B9A37

analogous

#376A9B #37389B #68379B

triadic

#37389B #9B3738 #389B37

tetradic

#37389B #9B376A #9B9A37 #379B68

square

#37389B #9B376A #9B9A37 #379B68

split-complementary

#37389B #9B6837 #6A9B37

monochromatic

#171741 #27286E #37389B #4F50C0 #7C7DD0

Accessibility & contrast

On white

9.54

#37389B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#37389B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37389B

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37389B	#FFFFFF	#000000	##FFFFFF
##37389B	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9E

Deuteranopia (green-blind)

#004199

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #37389b;
/* rgb */ color: rgb(55, 56, 155);
/* oklch */ color: oklch(40.4% 0.157 276.3);

Tailwind

colors: {
  custom: {
    50: '#7a6fb9',
    500: '#37389b',
    950: '#000000',
  },
}

SCSS

$custom: #37389b;
$custom-light: #7a6fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#37389b",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 155
  },
  "hsl": {
    "h": 239.4,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.40441,
    "c": 0.15717,
    "h": 276.3
  },
  "luminance": 0.06007
}

Semantic roles & 50–950 ramp

primary

#37389B

secondary

#BAB974

accent

#D651D7

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #37389B

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

Preview Lab → · Contrast checker → · Palette generator →