#403B8F#403B8F

#403B8F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.135 H 281.3°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#403B8F
RGB	rgb(64, 59, 143)
HSL	hsl(244, 42%, 40%)
HSV	hsv(244, 59%, 56%)
CMYK	cmyk(55.2%, 58.7%, 0%, 43.9%)
CIE-LAB	lab(29.91, 26.87, -46.06)
CIE-LCH	lch(29.91, 53.32, 300.26°)
OKLab	oklab(40.67% 0.0263 -0.1319)
OKLCH	oklch(40.67% 0.135 281.3)
XYZ	xyz(8.6347, 6.2006, 26.7231)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403B8F #8A8F3B

analogous

#3B608F #403B8F #6A3B8F

triadic

#403B8F #8F403B #3B8F40

tetradic

#403B8F #8F3B60 #8A8F3B #3B8F6A

square

#403B8F #8F3B60 #8A8F3B #3B8F6A

split-complementary

#403B8F #8F6A3B #608F3B

monochromatic

#191738 #2D2964 #403B8F #5650B7 #807CC9

Accessibility & contrast

On white

9.37

#403B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#403B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403B8F

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403B8F	#FFFFFF	#000000	##FFFFFF
##403B8F	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004992

Deuteranopia (green-blind)

#00438D

Tritanopia (blue-blind)

#1C4F5F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #403b8f;
/* rgb */ color: rgb(64, 59, 143);
/* oklch */ color: oklch(40.7% 0.135 281.3);

Tailwind

colors: {
  custom: {
    50: '#7c71b0',
    500: '#403b8f',
    950: '#000000',
  },
}

SCSS

$custom: #403b8f;
$custom-light: #7c71b0;
$custom-dark: #000000;

JSON

{
  "hex": "#403b8f",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 143
  },
  "hsl": {
    "h": 243.571,
    "s": 41.584,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40674,
    "c": 0.13452,
    "h": 281.3
  },
  "luminance": 0.06201
}

Semantic roles & 50–950 ramp

primary

#403B8F

secondary

#AFB273

accent

#D156CA

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #403B8F

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

Preview Lab → · Contrast checker → · Palette generator →