#40488E#40488E

#40488E is a dark, moderate blue. Relative luminance 0.077; OKLCH L 43.2% C 0.115 H 275.6°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#40488E
RGB	rgb(64, 72, 142)
HSL	hsl(234, 38%, 40%)
HSV	hsv(234, 55%, 56%)
CMYK	cmyk(54.9%, 49.3%, 0%, 44.3%)
CIE-LAB	lab(33.30, 18.00, -39.99)
CIE-LCH	lch(33.30, 43.85, 294.23°)
OKLab	oklab(43.19% 0.0112 -0.114)
OKLCH	oklch(43.19% 0.115 275.6)
XYZ	xyz(9.3126, 7.6771, 26.5770)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40488E #8E8640

analogous

#406F8E #40488E #5F408E

triadic

#40488E #8E4048 #488E40

tetradic

#40488E #8E406F #8E8640 #408E5F

square

#40488E #8E406F #8E8640 #408E5F

split-complementary

#40488E #8E5F40 #6F8E40

monochromatic

#1A1D3A #2D3364 #40488E #5861B4 #8289C7

Accessibility & contrast

On white

8.28

#40488E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#40488E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40488E

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40488E	#FFFFFF	#000000	##FFFFFF
##40488E	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275291

Deuteranopia (green-blind)

#1E4B8C

Tritanopia (blue-blind)

#1B5764

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #40488e;
/* rgb */ color: rgb(64, 72, 142);
/* oklch */ color: oklch(43.2% 0.115 275.6);

Tailwind

colors: {
  custom: {
    50: '#7b7aaf',
    500: '#40488e',
    950: '#000000',
  },
}

SCSS

$custom: #40488e;
$custom-light: #7b7aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#40488e",
  "rgb": {
    "r": 64,
    "g": 72,
    "b": 142
  },
  "hsl": {
    "h": 233.846,
    "s": 37.864,
    "l": 40.392
  },
  "oklch": {
    "l": 0.4319,
    "c": 0.11452,
    "h": 275.6
  },
  "luminance": 0.07678
}

Semantic roles & 50–950 ramp

primary

#40488E

secondary

#B1AB79

accent

#C25ACE

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #40488E

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

Preview Lab → · Contrast checker → · Palette generator →