#372F8E#372F8E

#372F8E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.7% C 0.151 H 280.1°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#372F8E
RGB	rgb(55, 47, 142)
HSL	hsl(245, 50%, 37%)
HSV	hsv(245, 67%, 56%)
CMYK	cmyk(61.3%, 66.9%, 0%, 44.3%)
CIE-LAB	lab(26.15, 32.52, -51.59)
CIE-LCH	lch(26.15, 60.99, 302.22°)
OKLab	oklab(37.7% 0.0265 -0.1485)
OKLCH	oklch(37.7% 0.151 280.1)
XYZ	xyz(7.4730, 4.7977, 26.1182)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372F8E #868E2F

analogous

#2F568E #372F8E #672F8E

triadic

#372F8E #8E372F #2F8E37

tetradic

#372F8E #8E2F56 #868E2F #2F8E67

square

#372F8E #8E2F56 #868E2F #2F8E67

split-complementary

#372F8E #8E672F #568E2F

monochromatic

#131132 #252060 #372F8E #493EBC #726ACE

Accessibility & contrast

On white

10.72

#372F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#372F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372F8E

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372F8E	#FFFFFF	#000000	##FFFFFF
##372F8E	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004191

Deuteranopia (green-blind)

#003A8C

Tritanopia (blue-blind)

#00475A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #372f8e;
/* rgb */ color: rgb(55, 47, 142);
/* oklch */ color: oklch(37.7% 0.151 280.1);

Tailwind

colors: {
  custom: {
    50: '#7868b0',
    500: '#372f8e',
    950: '#000000',
  },
}

SCSS

$custom: #372f8e;
$custom-light: #7868b0;
$custom-dark: #000000;

JSON

{
  "hex": "#372f8e",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 142
  },
  "hsl": {
    "h": 245.053,
    "s": 50.265,
    "l": 37.059
  },
  "oklch": {
    "l": 0.37702,
    "c": 0.15088,
    "h": 280.1
  },
  "luminance": 0.04798
}

Semantic roles & 50–950 ramp

primary

#372F8E

secondary

#AEB564

accent

#DA4ECE

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #372F8E

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

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