#403B60#403B60

#403B60 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.063 H 289.2°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#403B60
RGB	rgb(64, 59, 96)
HSL	hsl(248, 24%, 30%)
HSV	hsv(248, 39%, 38%)
CMYK	cmyk(33.3%, 38.5%, 0%, 62.4%)
CIE-LAB	lab(26.91, 11.76, -21.20)
CIE-LCH	lch(26.91, 24.24, 299.03°)
OKLab	oklab(37.45% 0.0206 -0.0591)
OKLCH	oklch(37.45% 0.063 289.2)
XYZ	xyz(5.7891, 5.0623, 11.7362)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403B60 #5B603B

analogous

#3B4860 #403B60 #523B60

triadic

#403B60 #60403B #3B6040

tetradic

#403B60 #603B48 #5B603B #3B6052

square

#403B60 #603B48 #5B603B #3B6052

split-complementary

#403B60 #60523B #48603B

monochromatic

#0D0C14 #27243A #403B60 #595286 #766FA6

Accessibility & contrast

On white

10.44

#403B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#403B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403B60

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403B60	#FFFFFF	#000000	##FFFFFF
##403B60	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304061

Deuteranopia (green-blind)

#303F5F

Tritanopia (blue-blind)

#384249

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #403b60;
/* rgb */ color: rgb(64, 59, 96);
/* oklch */ color: oklch(37.4% 0.063 289.2);

Tailwind

colors: {
  custom: {
    50: '#76708d',
    500: '#403b60',
    950: '#000000',
  },
}

SCSS

$custom: #403b60;
$custom-light: #76708d;
$custom-dark: #000000;

JSON

{
  "hex": "#403b60",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 96
  },
  "hsl": {
    "h": 248.108,
    "s": 23.871,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37449,
    "c": 0.06263,
    "h": 289.2
  },
  "luminance": 0.05062
}

Semantic roles & 50–950 ramp

primary

#403B60

secondary

#8A9067

accent

#C067B4

background

#F7F6F8

surface

#EDECF0

border

#C8C7CB

text

#08070C

muted

#7B7A7D

Preview Lab

Preview with #403B60

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

Preview Lab → · Contrast checker → · Palette generator →