#403D63#403D63

#403D63 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.1% C 0.064 H 286.5°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#403D63
RGB	rgb(64, 61, 99)
HSL	hsl(245, 24%, 31%)
HSV	hsv(245, 38%, 39%)
CMYK	cmyk(35.4%, 38.4%, 0%, 61.2%)
CIE-LAB	lab(27.65, 11.32, -21.98)
CIE-LCH	lch(27.65, 24.72, 297.26°)
OKLab	oklab(38.07% 0.0182 -0.0614)
OKLCH	oklch(38.07% 0.064 286.5)
XYZ	xyz(6.0346, 5.3282, 12.5125)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403D63 #60633D

analogous

#3D4D63 #403D63 #533D63

triadic

#403D63 #63403D #3D6340

tetradic

#403D63 #633D4D #60633D #3D6353

square

#403D63 #633D4D #60633D #3D6353

split-complementary

#403D63 #63533D #4D633D

monochromatic

#0F0E17 #28263D #403D63 #585489 #7672A8

Accessibility & contrast

On white

10.17

#403D63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#403D63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403D63

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403D63	#FFFFFF	#000000	##FFFFFF
##403D63	1.00	10.17	2.07	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324265

Deuteranopia (green-blind)

#314062

Tritanopia (blue-blind)

#37444B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #403d63;
/* rgb */ color: rgb(64, 61, 99);
/* oklch */ color: oklch(38.1% 0.064 286.5);

Tailwind

colors: {
  custom: {
    50: '#76728f',
    500: '#403d63',
    950: '#000000',
  },
}

SCSS

$custom: #403d63;
$custom-light: #76728f;
$custom-dark: #000000;

JSON

{
  "hex": "#403d63",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 99
  },
  "hsl": {
    "h": 244.737,
    "s": 23.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.38066,
    "c": 0.06405,
    "h": 286.5
  },
  "luminance": 0.05328
}

Semantic roles & 50–950 ramp

primary

#403D63

secondary

#909369

accent

#C068B9

background

#F7F6F8

surface

#EDECF0

border

#C8C7CB

text

#08080C

muted

#7B7B7D

Preview Lab

Preview with #403D63

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

Preview Lab → · Contrast checker → · Palette generator →