#4030B7#4030B7

#4030B7 is a dark, highly saturated blue. Relative luminance 0.066; OKLCH L 42.5% C 0.200 H 278.9°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#4030B7
RGB	rgb(64, 48, 183)
HSL	hsl(247, 58%, 45%)
HSV	hsv(247, 74%, 72%)
CMYK	cmyk(65%, 73.8%, 0%, 28.2%)
CIE-LAB	lab(30.93, 46.55, -68.56)
CIE-LCH	lch(30.93, 82.87, 304.18°)
OKLab	oklab(42.48% 0.0311 -0.1979)
OKLCH	oklch(42.48% 0.2 278.9)
XYZ	xyz(11.7158, 6.6218, 45.4513)
Luminance	0.0662 (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

#4030B7 #A7B730

analogous

#3063B7 #4030B7 #8330B7

triadic

#4030B7 #B74030 #30B740

tetradic

#4030B7 #B73063 #A7B730 #30B783

square

#4030B7 #B73063 #A7B730 #30B783

split-complementary

#4030B7 #B78330 #63B730

monochromatic

#1E1756 #2F2387 #4030B7 #6252D2 #8E83DE

Accessibility & contrast

On white

9.03

#4030B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#4030B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4030B7

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4030B7	#FFFFFF	#000000	##FFFFFF
##4030B7	1.00	9.03	2.32	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBB

Deuteranopia (green-blind)

#0043B5

Tritanopia (blue-blind)

#005671

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #4030b7;
/* rgb */ color: rgb(64, 48, 183);
/* oklch */ color: oklch(42.5% 0.200 278.9);

Tailwind

colors: {
  custom: {
    50: '#846bce',
    500: '#4030b7',
    950: '#000000',
  },
}

SCSS

$custom: #4030b7;
$custom-light: #846bce;
$custom-dark: #000000;

JSON

{
  "hex": "#4030b7",
  "rgb": {
    "r": 64,
    "g": 48,
    "b": 183
  },
  "hsl": {
    "h": 247.111,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.4248,
    "c": 0.20034,
    "h": 278.9
  },
  "luminance": 0.06623
}

Semantic roles & 50–950 ramp

primary

#4030B7

secondary

#BFC87B

accent

#E246CF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4030B7

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

Preview Lab → · Contrast checker → · Palette generator →