#4030A4#4030A4

#4030A4 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.6% C 0.177 H 281.4°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#4030A4
RGB	rgb(64, 48, 164)
HSL	hsl(248, 55%, 42%)
HSV	hsv(248, 71%, 64%)
CMYK	cmyk(61%, 70.7%, 0%, 35.7%)
CIE-LAB	lab(29.12, 40.55, -60.16)
CIE-LCH	lch(29.12, 72.55, 303.98°)
OKLab	oklab(40.64% 0.0348 -0.1734)
OKLCH	oklch(40.64% 0.177 281.4)
XYZ	xyz(9.8700, 5.8835, 35.7303)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.15

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4030A4 #94A430

analogous

#305AA4 #4030A4 #7A30A4

triadic

#4030A4 #A44030 #30A440

tetradic

#4030A4 #A4305A #94A430 #30A47A

square

#4030A4 #A4305A #94A430 #30A47A

split-complementary

#4030A4 #A47A30 #5AA430

monochromatic

#1B1445 #2E2275 #4030A4 #5A48C9 #8477D7

Accessibility & contrast

On white

9.65

#4030A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#4030A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4030A4

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4030A4	#FFFFFF	#000000	##FFFFFF
##4030A4	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A7

Deuteranopia (green-blind)

#0040A2

Tritanopia (blue-blind)

#004F66

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #4030a4;
/* rgb */ color: rgb(64, 48, 164);
/* oklch */ color: oklch(40.6% 0.177 281.4);

Tailwind

colors: {
  custom: {
    50: '#816ac0',
    500: '#4030a4',
    950: '#000000',
  },
}

SCSS

$custom: #4030a4;
$custom-light: #816ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#4030a4",
  "rgb": {
    "r": 64,
    "g": 48,
    "b": 164
  },
  "hsl": {
    "h": 248.276,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.4064,
    "c": 0.17684,
    "h": 281.4
  },
  "luminance": 0.05884
}

Semantic roles & 50–950 ramp

primary

#4030A4

secondary

#B4BF70

accent

#DE4ACA

background

#F8F6FB

surface

#F0EBF7

border

#CBC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #4030A4

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

Preview Lab → · Contrast checker → · Palette generator →