#403B8E#403B8E

#403B8E is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.6% C 0.133 H 281.4°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#403B8E
RGB	rgb(64, 59, 142)
HSL	hsl(244, 41%, 39%)
HSV	hsv(244, 58%, 56%)
CMYK	cmyk(54.9%, 58.5%, 0%, 44.3%)
CIE-LAB	lab(29.84, 26.54, -45.56)
CIE-LCH	lch(29.84, 52.73, 300.22°)
OKLab	oklab(40.6% 0.0263 -0.1305)
OKLCH	oklch(40.6% 0.133 281.4)
XYZ	xyz(8.5593, 6.1704, 26.3259)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403B8E #898E3B

analogous

#3B608E #403B8E #6A3B8E

triadic

#403B8E #8E403B #3B8E40

tetradic

#403B8E #8E3B60 #898E3B #3B8E6A

square

#403B8E #8E3B60 #898E3B #3B8E6A

split-complementary

#403B8E #8E6A3B #608E3B

monochromatic

#191738 #2D2963 #403B8E #5650B6 #807BC8

Accessibility & contrast

On white

9.40

#403B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#403B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403B8E

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403B8E	#FFFFFF	#000000	##FFFFFF
##403B8E	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004991

Deuteranopia (green-blind)

#00438C

Tritanopia (blue-blind)

#1E4E5E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #403b8e;
/* rgb */ color: rgb(64, 59, 142);
/* oklch */ color: oklch(40.6% 0.133 281.4);

Tailwind

colors: {
  custom: {
    50: '#7c71b0',
    500: '#403b8e',
    950: '#000000',
  },
}

SCSS

$custom: #403b8e;
$custom-light: #7c71b0;
$custom-dark: #000000;

JSON

{
  "hex": "#403b8e",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 142
  },
  "hsl": {
    "h": 243.614,
    "s": 41.294,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40595,
    "c": 0.1331,
    "h": 281.4
  },
  "luminance": 0.06171
}

Semantic roles & 50–950 ramp

primary

#403B8E

secondary

#AEB273

accent

#D157CA

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #403B8E

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

Preview Lab → · Contrast checker → · Palette generator →