#40458E#40458E

#40458E is a dark, moderate blue. Relative luminance 0.073; OKLCH L 42.6% C 0.119 H 277.1°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#40458E
RGB	rgb(64, 69, 142)
HSL	hsl(236, 38%, 40%)
HSV	hsv(236, 55%, 56%)
CMYK	cmyk(54.9%, 51.4%, 0%, 44.3%)
CIE-LAB	lab(32.48, 19.98, -41.31)
CIE-LCH	lch(32.48, 45.89, 295.81°)
OKLab	oklab(42.57% 0.0148 -0.1179)
OKLCH	oklch(42.57% 0.119 277.1)
XYZ	xyz(9.1234, 7.2986, 26.5140)
Luminance	0.0730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40458E #8E8940

analogous

#406C8E #40458E #62408E

triadic

#40458E #8E4045 #458E40

tetradic

#40458E #8E406C #8E8940 #408E62

square

#40458E #8E406C #8E8940 #408E62

split-complementary

#40458E #8E6240 #6C8E40

monochromatic

#1A1C3A #2D3164 #40458E #585EB4 #8286C7

Accessibility & contrast

On white

8.54

#40458E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#40458E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40458E

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40458E	#FFFFFF	#000000	##FFFFFF
##40458E	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215091

Deuteranopia (green-blind)

#17498C

Tritanopia (blue-blind)

#1C5563

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #40458e;
/* rgb */ color: rgb(64, 69, 142);
/* oklch */ color: oklch(42.6% 0.119 277.1);

Tailwind

colors: {
  custom: {
    50: '#7b78af',
    500: '#40458e',
    950: '#000000',
  },
}

SCSS

$custom: #40458e;
$custom-light: #7b78af;
$custom-dark: #000000;

JSON

{
  "hex": "#40458e",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 142
  },
  "hsl": {
    "h": 236.154,
    "s": 37.864,
    "l": 40.392
  },
  "oklch": {
    "l": 0.42568,
    "c": 0.1188,
    "h": 277.1
  },
  "luminance": 0.07299
}

Semantic roles & 50–950 ramp

primary

#40458E

secondary

#B1AD79

accent

#C65ACE

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #40458E

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

Preview Lab → · Contrast checker → · Palette generator →