#3047B8#3047B8

#3047B8 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.3% C 0.180 H 269.0°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#3047B8
RGB	rgb(48, 71, 184)
HSL	hsl(230, 59%, 45%)
HSV	hsv(230, 74%, 72%)
CMYK	cmyk(73.9%, 61.4%, 0%, 27.8%)
CIE-LAB	lab(35.19, 31.02, -62.20)
CIE-LCH	lch(35.19, 69.51, 296.51°)
OKLab	oklab(45.33% -0.003 -0.1797)
OKLCH	oklch(45.33% 0.18 269)
XYZ	xyz(12.1209, 8.5943, 46.3582)
Luminance	0.0860 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3047B8 #B8A130

analogous

#308BB8 #3047B8 #5D30B8

triadic

#3047B8 #B83047 #47B830

tetradic

#3047B8 #B8308B #B8A130 #30B85D

square

#3047B8 #B8308B #B8A130 #30B85D

split-complementary

#3047B8 #B85D30 #8BB830

monochromatic

#172257 #233487 #3047B8 #5369D2 #8493DF

Accessibility & contrast

On white

7.72

#3047B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3047B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3047B8

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3047B8	#FFFFFF	#000000	##FFFFFF
##3047B8	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BC

Deuteranopia (green-blind)

#004DB6

Tritanopia (blue-blind)

#006478

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3047b8;
/* rgb */ color: rgb(48, 71, 184);
/* oklch */ color: oklch(45.3% 0.180 269.0);

Tailwind

colors: {
  custom: {
    50: '#7c7ace',
    500: '#3047b8',
    950: '#000000',
  },
}

SCSS

$custom: #3047b8;
$custom-light: #7c7ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3047b8",
  "rgb": {
    "r": 48,
    "g": 71,
    "b": 184
  },
  "hsl": {
    "h": 229.853,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.45334,
    "c": 0.17969,
    "h": 269
  },
  "luminance": 0.08596
}

Semantic roles & 50–950 ramp

primary

#3047B8

secondary

#C8BB7C

accent

#C746E2

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3047B8

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

Preview Lab → · Contrast checker → · Palette generator →