#2F37A4#2F37A4

#2F37A4 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.6% C 0.173 H 272.6°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#2F37A4
RGB	rgb(47, 55, 164)
HSL	hsl(236, 55%, 41%)
HSV	hsv(236, 71%, 64%)
CMYK	cmyk(71.3%, 66.5%, 0%, 35.7%)
CIE-LAB	lab(29.45, 33.96, -59.66)
CIE-LCH	lch(29.45, 68.65, 299.65°)
OKLab	oklab(40.57% 0.0079 -0.1724)
OKLCH	oklch(40.57% 0.173 272.6)
XYZ	xyz(9.2371, 6.0161, 35.7892)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F37A4 #A49C2F

analogous

#2F72A4 #2F37A4 #622FA4

triadic

#2F37A4 #A42F37 #37A42F

tetradic

#2F37A4 #A42F72 #A49C2F #2FA462

square

#2F37A4 #A42F72 #A49C2F #2FA462

split-complementary

#2F37A4 #A4622F #72A42F

monochromatic

#141745 #212774 #2F37A4 #464FCA #767CD8

Accessibility & contrast

On white

9.53

#2F37A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2F37A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F37A4

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F37A4	#FFFFFF	#000000	##FFFFFF
##2F37A4	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA7

Deuteranopia (green-blind)

#0040A2

Tritanopia (blue-blind)

#005468

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2f37a4;
/* rgb */ color: rgb(47, 55, 164);
/* oklch */ color: oklch(40.6% 0.173 272.6);

Tailwind

colors: {
  custom: {
    50: '#786ec0',
    500: '#2f37a4',
    950: '#000000',
  },
}

SCSS

$custom: #2f37a4;
$custom-light: #786ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f37a4",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 164
  },
  "hsl": {
    "h": 235.897,
    "s": 55.45,
    "l": 41.373
  },
  "oklch": {
    "l": 0.40565,
    "c": 0.17255,
    "h": 272.6
  },
  "luminance": 0.06017
}

Semantic roles & 50–950 ramp

primary

#2F37A4

secondary

#C0BA6F

accent

#D549DF

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F37A4

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

Preview Lab → · Contrast checker → · Palette generator →