#4030B5#4030B5

#4030B5 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 42.3% C 0.198 H 279.1°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#4030B5
RGB	rgb(64, 48, 181)
HSL	hsl(247, 58%, 45%)
HSV	hsv(247, 73%, 71%)
CMYK	cmyk(64.6%, 73.5%, 0%, 29%)
CIE-LAB	lab(30.73, 45.92, -67.69)
CIE-LCH	lch(30.73, 81.80, 304.15°)
OKLab	oklab(42.28% 0.0315 -0.1954)
OKLCH	oklch(42.28% 0.198 279.1)
XYZ	xyz(11.5091, 6.5392, 44.3628)
Luminance	0.0654 (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

#4030B5 #A5B530

analogous

#3063B5 #4030B5 #8330B5

triadic

#4030B5 #B54030 #30B540

tetradic

#4030B5 #B53063 #A5B530 #30B583

square

#4030B5 #B53063 #A5B530 #30B583

split-complementary

#4030B5 #B58330 #63B530

monochromatic

#1E1654 #2F2385 #4030B5 #6151D1 #8D82DE

Accessibility & contrast

On white

9.10

#4030B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#4030B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4030B5

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4030B5	#FFFFFF	#000000	##FFFFFF
##4030B5	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB9

Deuteranopia (green-blind)

#0043B3

Tritanopia (blue-blind)

#005570

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #4030b5;
/* rgb */ color: rgb(64, 48, 181);
/* oklch */ color: oklch(42.3% 0.198 279.1);

Tailwind

colors: {
  custom: {
    50: '#846bcc',
    500: '#4030b5',
    950: '#000000',
  },
}

SCSS

$custom: #4030b5;
$custom-light: #846bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4030b5",
  "rgb": {
    "r": 64,
    "g": 48,
    "b": 181
  },
  "hsl": {
    "h": 247.218,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42282,
    "c": 0.19792,
    "h": 279.1
  },
  "luminance": 0.0654
}

Semantic roles & 50–950 ramp

primary

#4030B5

secondary

#BEC77A

accent

#E146CF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4030B5

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

Preview Lab → · Contrast checker → · Palette generator →