#3037CF#3037CF

#3037CF is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.9% C 0.226 H 270.9°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#3037CF
RGB	rgb(48, 55, 207)
HSL	hsl(237, 62%, 50%)
HSV	hsv(237, 77%, 81%)
CMYK	cmyk(76.8%, 73.4%, 0%, 18.8%)
CIE-LAB	lab(33.70, 48.86, -78.11)
CIE-LCH	lch(33.70, 92.13, 302.03°)
OKLab	oklab(44.9% 0.0036 -0.2262)
OKLCH	oklch(44.9% 0.226 270.9)
XYZ	xyz(13.8438, 7.8642, 59.8077)
Luminance	0.0787 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.60

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3037CF #CFC830

analogous

#3087CF #3037CF #7830CF

triadic

#3037CF #CF3037 #37CF30

tetradic

#3037CF #CF3087 #CFC830 #30CF78

square

#3037CF #CF3087 #CFC830 #30CF78

split-complementary

#3037CF #CF7830 #87CF30

monochromatic

#191D6C #242A9D #3037CF #6267DB #9397E6

Accessibility & contrast

On white

8.16

#3037CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3037CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3037CF

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3037CF	#FFFFFF	#000000	##FFFFFF
##3037CF	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057D3

Deuteranopia (green-blind)

#0047CC

Tritanopia (blue-blind)

#006380

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3037cf;
/* rgb */ color: rgb(48, 55, 207);
/* oklch */ color: oklch(44.9% 0.226 270.9);

Tailwind

colors: {
  custom: {
    50: '#836fdf',
    500: '#3037cf',
    950: '#000000',
  },
}

SCSS

$custom: #3037cf;
$custom-light: #836fdf;
$custom-dark: #000000;

JSON

{
  "hex": "#3037cf",
  "rgb": {
    "r": 48,
    "g": 55,
    "b": 207
  },
  "hsl": {
    "h": 237.358,
    "s": 62.353,
    "l": 50
  },
  "oklch": {
    "l": 0.44898,
    "c": 0.2262,
    "h": 270.9
  },
  "luminance": 0.07866
}

Semantic roles & 50–950 ramp

primary

#3037CF

secondary

#D1CE8A

accent

#DE42E5

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3037CF

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

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