#4030B9#4030B9

#4030B9 is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.7% C 0.203 H 278.7°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#4030B9
RGB	rgb(64, 48, 185)
HSL	hsl(247, 59%, 46%)
HSV	hsv(247, 74%, 73%)
CMYK	cmyk(65.4%, 74.1%, 0%, 27.5%)
CIE-LAB	lab(31.13, 47.18, -69.42)
CIE-LCH	lch(31.13, 83.93, 304.20°)
OKLab	oklab(42.68% 0.0306 -0.2004)
OKLCH	oklch(42.68% 0.203 278.7)
XYZ	xyz(11.9254, 6.7057, 46.5554)
Luminance	0.0671 (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

#4030B9 #A9B930

analogous

#3065B9 #4030B9 #8430B9

triadic

#4030B9 #B94030 #30B940

tetradic

#4030B9 #B93065 #A9B930 #30B984

square

#4030B9 #B93065 #A9B930 #30B984

split-complementary

#4030B9 #B98430 #65B930

monochromatic

#1E1758 #2F2388 #4030B9 #6254D3 #8F84DF

Accessibility & contrast

On white

8.97

#4030B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#4030B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4030B9

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4030B9	#FFFFFF	#000000	##FFFFFF
##4030B9	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBD

Deuteranopia (green-blind)

#0044B7

Tritanopia (blue-blind)

#005772

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #4030b9;
/* rgb */ color: rgb(64, 48, 185);
/* oklch */ color: oklch(42.7% 0.203 278.7);

Tailwind

colors: {
  custom: {
    50: '#856bcf',
    500: '#4030b9',
    950: '#000000',
  },
}

SCSS

$custom: #4030b9;
$custom-light: #856bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4030b9",
  "rgb": {
    "r": 64,
    "g": 48,
    "b": 185
  },
  "hsl": {
    "h": 247.007,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.42679,
    "c": 0.20276,
    "h": 278.7
  },
  "luminance": 0.06707
}

Semantic roles & 50–950 ramp

primary

#4030B9

secondary

#C0C97C

accent

#E246D0

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4030B9

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

Preview Lab → · Contrast checker → · Palette generator →