#40489E#40489E

#40489E is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.4% C 0.138 H 275.3°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#40489E
RGB	rgb(64, 72, 158)
HSL	hsl(235, 42%, 44%)
HSV	hsv(235, 59%, 62%)
CMYK	cmyk(59.5%, 54.4%, 0%, 38%)
CIE-LAB	lab(34.38, 23.52, -47.97)
CIE-LCH	lch(34.38, 53.43, 296.12°)
OKLab	oklab(44.35% 0.0127 -0.1374)
OKLCH	oklch(44.35% 0.138 275.3)
XYZ	xyz(10.6013, 8.1925, 33.3638)
Luminance	0.0819 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40489E #9E9640

analogous

#40779E #40489E #67409E

triadic

#40489E #9E4048 #489E40

tetradic

#40489E #9E4077 #9E9640 #409E67

square

#40489E #9E4077 #9E9640 #409E67

split-complementary

#40489E #9E6740 #779E40

monochromatic

#1D2047 #2E3472 #40489E #5E66BE #898FCF

Accessibility & contrast

On white

7.96

#40489E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#40489E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40489E

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40489E	#FFFFFF	#000000	##FFFFFF
##40489E	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1255A1

Deuteranopia (green-blind)

#004D9C

Tritanopia (blue-blind)

#005C6C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #40489e;
/* rgb */ color: rgb(64, 72, 158);
/* oklch */ color: oklch(44.4% 0.138 275.3);

Tailwind

colors: {
  custom: {
    50: '#7e7abb',
    500: '#40489e',
    950: '#000000',
  },
}

SCSS

$custom: #40489e;
$custom-light: #7e7abb;
$custom-dark: #000000;

JSON

{
  "hex": "#40489e",
  "rgb": {
    "r": 64,
    "g": 72,
    "b": 158
  },
  "hsl": {
    "h": 234.894,
    "s": 42.342,
    "l": 43.529
  },
  "oklch": {
    "l": 0.4435,
    "c": 0.13803,
    "h": 275.3
  },
  "luminance": 0.08193
}

Semantic roles & 50–950 ramp

primary

#40489E

secondary

#BAB580

accent

#C856D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #40489E

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

Preview Lab → · Contrast checker → · Palette generator →