#3037BA#3037BA

#3037BA is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 42.8% C 0.201 H 271.9°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#3037BA
RGB	rgb(48, 55, 186)
HSL	hsl(237, 59%, 46%)
HSV	hsv(237, 74%, 73%)
CMYK	cmyk(74.2%, 70.4%, 0%, 27.1%)
CIE-LAB	lab(31.59, 41.78, -69.29)
CIE-LCH	lch(31.59, 80.91, 301.09°)
OKLab	oklab(42.76% 0.0066 -0.2005)
OKLCH	oklch(42.76% 0.201 271.9)
XYZ	xyz(11.4450, 6.9047, 47.1744)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3037BA #BAB330

analogous

#307CBA #3037BA #6E30BA

triadic

#3037BA #BA3037 #37BA30

tetradic

#3037BA #BA307C #BAB330 #30BA6E

square

#3037BA #BA307C #BAB330 #30BA6E

split-complementary

#3037BA #BA6E30 #7CBA30

monochromatic

#171A59 #232989 #3037BA #545BD3 #858ADF

Accessibility & contrast

On white

8.82

#3037BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3037BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3037BA

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3037BA	#FFFFFF	#000000	##FFFFFF
##3037BA	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BE

Deuteranopia (green-blind)

#0044B8

Tritanopia (blue-blind)

#005B74

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3037ba;
/* rgb */ color: rgb(48, 55, 186);
/* oklch */ color: oklch(42.8% 0.201 271.9);

Tailwind

colors: {
  custom: {
    50: '#7e6fd0',
    500: '#3037ba',
    950: '#000000',
  },
}

SCSS

$custom: #3037ba;
$custom-light: #7e6fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3037ba",
  "rgb": {
    "r": 48,
    "g": 55,
    "b": 186
  },
  "hsl": {
    "h": 236.957,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.42759,
    "c": 0.20059,
    "h": 271.9
  },
  "luminance": 0.06906
}

Semantic roles & 50–950 ramp

primary

#3037BA

secondary

#C9C57D

accent

#DA46E2

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3037BA

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

Preview Lab → · Contrast checker → · Palette generator →