#4045A3#4045A3

#4045A3 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.2% C 0.149 H 276.1°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#4045A3
RGB	rgb(64, 69, 163)
HSL	hsl(237, 44%, 45%)
HSV	hsv(237, 61%, 64%)
CMYK	cmyk(60.7%, 57.7%, 0%, 36.1%)
CIE-LAB	lab(33.96, 27.21, -51.66)
CIE-LCH	lch(33.96, 58.39, 297.77°)
OKLab	oklab(44.15% 0.0159 -0.1483)
OKLCH	oklch(44.15% 0.149 276.1)
XYZ	xyz(10.8512, 7.9897, 35.6136)
Luminance	0.0799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4045A3 #A39E40

analogous

#4076A3 #4045A3 #6D40A3

triadic

#4045A3 #A34045 #45A340

tetradic

#4045A3 #A34076 #A39E40 #40A36D

square

#4045A3 #A34076 #A39E40 #40A36D

split-complementary

#4045A3 #A36D40 #76A340

monochromatic

#1D204B #2F3277 #4045A3 #6065C0 #8C8FD2

Accessibility & contrast

On white

8.08

#4045A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#4045A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4045A3

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4045A3	#FFFFFF	#000000	##FFFFFF
##4045A3	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A6

Deuteranopia (green-blind)

#004CA1

Tritanopia (blue-blind)

#005B6D

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4045a3;
/* rgb */ color: rgb(64, 69, 163);
/* oklch */ color: oklch(44.2% 0.149 276.1);

Tailwind

colors: {
  custom: {
    50: '#7f78bf',
    500: '#4045a3',
    950: '#000000',
  },
}

SCSS

$custom: #4045a3;
$custom-light: #7f78bf;
$custom-dark: #000000;

JSON

{
  "hex": "#4045a3",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 163
  },
  "hsl": {
    "h": 236.97,
    "s": 43.612,
    "l": 44.51
  },
  "oklch": {
    "l": 0.44152,
    "c": 0.14917,
    "h": 276.1
  },
  "luminance": 0.07991
}

Semantic roles & 50–950 ramp

primary

#4045A3

secondary

#BDBA82

accent

#CD54D3

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #4045A3

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

Preview Lab → · Contrast checker → · Palette generator →