#4030B8#4030B8

#4030B8 is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.6% C 0.202 H 278.8°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#4030B8
RGB	rgb(64, 48, 184)
HSL	hsl(247, 59%, 45%)
HSV	hsv(247, 74%, 72%)
CMYK	cmyk(65.2%, 73.9%, 0%, 27.8%)
CIE-LAB	lab(31.03, 46.87, -68.99)
CIE-LCH	lch(31.03, 83.40, 304.19°)
OKLab	oklab(42.58% 0.0308 -0.1992)
OKLCH	oklch(42.58% 0.202 278.8)
XYZ	xyz(11.8203, 6.6636, 46.0014)
Luminance	0.0667 (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

#4030B8 #A8B830

analogous

#3064B8 #4030B8 #8430B8

triadic

#4030B8 #B84030 #30B840

tetradic

#4030B8 #B83064 #A8B830 #30B884

square

#4030B8 #B83064 #A8B830 #30B884

split-complementary

#4030B8 #B88430 #64B830

monochromatic

#1E1757 #2F2387 #4030B8 #6253D2 #8E84DF

Accessibility & contrast

On white

9.00

#4030B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#4030B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4030B8

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4030B8	#FFFFFF	#000000	##FFFFFF
##4030B8	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBC

Deuteranopia (green-blind)

#0043B6

Tritanopia (blue-blind)

#005771

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #4030b8;
/* rgb */ color: rgb(64, 48, 184);
/* oklch */ color: oklch(42.6% 0.202 278.8);

Tailwind

colors: {
  custom: {
    50: '#846bcf',
    500: '#4030b8',
    950: '#000000',
  },
}

SCSS

$custom: #4030b8;
$custom-light: #846bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4030b8",
  "rgb": {
    "r": 64,
    "g": 48,
    "b": 184
  },
  "hsl": {
    "h": 247.059,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4258,
    "c": 0.20155,
    "h": 278.8
  },
  "luminance": 0.06665
}

Semantic roles & 50–950 ramp

primary

#4030B8

secondary

#BFC87C

accent

#E246CF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4030B8

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

Preview Lab → · Contrast checker → · Palette generator →