#3037BF#3037BF

#3037BF is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.3% C 0.207 H 271.6°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#3037BF
RGB	rgb(48, 55, 191)
HSL	hsl(237, 60%, 47%)
HSV	hsv(237, 75%, 75%)
CMYK	cmyk(74.9%, 71.2%, 0%, 25.1%)
CIE-LAB	lab(32.08, 43.49, -71.43)
CIE-LCH	lch(32.08, 83.62, 301.34°)
OKLab	oklab(43.26% 0.006 -0.2067)
OKLCH	oklch(43.26% 0.207 271.6)
XYZ	xyz(11.9859, 7.1211, 50.0229)
Luminance	0.0712 (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

#3037BF #BFB830

analogous

#307FBF #3037BF #7130BF

triadic

#3037BF #BF3037 #37BF30

tetradic

#3037BF #BF307F #BFB830 #30BF71

square

#3037BF #BF307F #BFB830 #30BF71

split-complementary

#3037BF #BF7130 #7FBF30

monochromatic

#171B5D #24298E #3037BF #575DD5 #888DE1

Accessibility & contrast

On white

8.66

#3037BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3037BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3037BF

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3037BF	#FFFFFF	#000000	##FFFFFF
##3037BF	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C3

Deuteranopia (green-blind)

#0045BD

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3037bf;
/* rgb */ color: rgb(48, 55, 191);
/* oklch */ color: oklch(43.3% 0.207 271.6);

Tailwind

colors: {
  custom: {
    50: '#7f6fd4',
    500: '#3037bf',
    950: '#000000',
  },
}

SCSS

$custom: #3037bf;
$custom-light: #7f6fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3037bf",
  "rgb": {
    "r": 48,
    "g": 55,
    "b": 191
  },
  "hsl": {
    "h": 237.063,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4326,
    "c": 0.20681,
    "h": 271.6
  },
  "luminance": 0.07122
}

Semantic roles & 50–950 ramp

primary

#3037BF

secondary

#CBC780

accent

#DB45E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3037BF

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

Preview Lab → · Contrast checker → · Palette generator →