#4041B1#4041B1

#4041B1 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.6% C 0.173 H 276.4°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#4041B1
RGB	rgb(64, 65, 177)
HSL	hsl(239, 47%, 47%)
HSV	hsv(239, 64%, 69%)
CMYK	cmyk(63.8%, 63.3%, 0%, 30.6%)
CIE-LAB	lab(34.07, 34.56, -59.84)
CIE-LCH	lch(34.07, 69.10, 300.01°)
OKLab	oklab(44.58% 0.0192 -0.1724)
OKLCH	oklch(44.58% 0.173 276.4)
XYZ	xyz(11.9379, 8.0439, 42.5100)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4041B1 #B1B040

analogous

#407AB1 #4041B1 #7840B1

triadic

#4041B1 #B14041 #41B140

tetradic

#4041B1 #B1407A #B1B040 #40B178

square

#4041B1 #B1407A #B1B040 #40B178

split-complementary

#4041B1 #B17840 #7AB140

monochromatic

#1F2057 #303084 #4041B1 #6667C8 #9394D8

Accessibility & contrast

On white

8.05

#4041B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#4041B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4041B1

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4041B1	#FFFFFF	#000000	##FFFFFF
##4041B1	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B5

Deuteranopia (green-blind)

#004BAF

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4041b1;
/* rgb */ color: rgb(64, 65, 177);
/* oklch */ color: oklch(44.6% 0.173 276.4);

Tailwind

colors: {
  custom: {
    50: '#8276c9',
    500: '#4041b1',
    950: '#000000',
  },
}

SCSS

$custom: #4041b1;
$custom-light: #8276c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4041b1",
  "rgb": {
    "r": 64,
    "g": 65,
    "b": 177
  },
  "hsl": {
    "h": 239.469,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.44581,
    "c": 0.17347,
    "h": 276.4
  },
  "luminance": 0.08045
}

Semantic roles & 50–950 ramp

primary

#4041B1

secondary

#C3C389

accent

#D551D7

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4041B1

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

Preview Lab → · Contrast checker → · Palette generator →