#40489D#40489D

#40489D is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.3% C 0.137 H 275.3°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#40489D
RGB	rgb(64, 72, 157)
HSL	hsl(235, 42%, 43%)
HSV	hsv(235, 59%, 62%)
CMYK	cmyk(59.2%, 54.1%, 0%, 38.4%)
CIE-LAB	lab(34.31, 23.18, -47.48)
CIE-LCH	lch(34.31, 52.84, 296.02°)
OKLab	oklab(44.27% 0.0126 -0.136)
OKLCH	oklch(44.27% 0.137 275.3)
XYZ	xyz(10.5155, 8.1583, 32.9123)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40489D #9D9540

analogous

#40769D #40489D #66409D

triadic

#40489D #9D4048 #489D40

tetradic

#40489D #9D4076 #9D9540 #409D66

square

#40489D #9D4076 #9D9540 #409D66

split-complementary

#40489D #9D6640 #769D40

monochromatic

#1D2046 #2E3472 #40489D #5D65BD #898FCF

Accessibility & contrast

On white

7.98

#40489D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#40489D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40489D

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40489D	#FFFFFF	#000000	##FFFFFF
##40489D	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1455A0

Deuteranopia (green-blind)

#004D9B

Tritanopia (blue-blind)

#005C6B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #40489d;
/* rgb */ color: rgb(64, 72, 157);
/* oklch */ color: oklch(44.3% 0.137 275.3);

Tailwind

colors: {
  custom: {
    50: '#7e7aba',
    500: '#40489d',
    950: '#000000',
  },
}

SCSS

$custom: #40489d;
$custom-light: #7e7aba;
$custom-dark: #000000;

JSON

{
  "hex": "#40489d",
  "rgb": {
    "r": 64,
    "g": 72,
    "b": 157
  },
  "hsl": {
    "h": 234.839,
    "s": 42.081,
    "l": 43.333
  },
  "oklch": {
    "l": 0.44274,
    "c": 0.13658,
    "h": 275.3
  },
  "luminance": 0.08159
}

Semantic roles & 50–950 ramp

primary

#40489D

secondary

#B9B47F

accent

#C756D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #40489D

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

Preview Lab → · Contrast checker → · Palette generator →