#40479E#40479E

#40479E is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.2% C 0.139 H 275.6°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#40479E
RGB	rgb(64, 71, 158)
HSL	hsl(236, 42%, 44%)
HSV	hsv(236, 59%, 62%)
CMYK	cmyk(59.5%, 55.1%, 0%, 38%)
CIE-LAB	lab(34.12, 24.18, -48.40)
CIE-LCH	lch(34.12, 54.10, 296.54°)
OKLab	oklab(44.15% 0.0137 -0.1387)
OKLCH	oklch(44.15% 0.139 275.6)
XYZ	xyz(10.5371, 8.0643, 33.3424)
Luminance	0.0806 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40479E #9E9740

analogous

#40769E #40479E #68409E

triadic

#40479E #9E4047 #479E40

tetradic

#40479E #9E4076 #9E9740 #409E68

square

#40479E #9E4076 #9E9740 #409E68

split-complementary

#40479E #9E6840 #769E40

monochromatic

#1D2047 #2E3372 #40479E #5E65BE #898ECF

Accessibility & contrast

On white

8.04

#40479E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#40479E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40479E

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40479E	#FFFFFF	#000000	##FFFFFF
##40479E	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D54A1

Deuteranopia (green-blind)

#004C9C

Tritanopia (blue-blind)

#005B6B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #40479e;
/* rgb */ color: rgb(64, 71, 158);
/* oklch */ color: oklch(44.2% 0.139 275.6);

Tailwind

colors: {
  custom: {
    50: '#7e7abb',
    500: '#40479e',
    950: '#000000',
  },
}

SCSS

$custom: #40479e;
$custom-light: #7e7abb;
$custom-dark: #000000;

JSON

{
  "hex": "#40479e",
  "rgb": {
    "r": 64,
    "g": 71,
    "b": 158
  },
  "hsl": {
    "h": 235.532,
    "s": 42.342,
    "l": 43.529
  },
  "oklch": {
    "l": 0.44152,
    "c": 0.13938,
    "h": 275.6
  },
  "luminance": 0.08065
}

Semantic roles & 50–950 ramp

primary

#40479E

secondary

#BAB680

accent

#C956D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #40479E

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

Preview Lab → · Contrast checker → · Palette generator →