#4045B5#4045B5

#4045B5 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.6% C 0.174 H 275.2°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#4045B5
RGB	rgb(64, 69, 181)
HSL	hsl(237, 48%, 48%)
HSV	hsv(237, 65%, 71%)
CMYK	cmyk(64.6%, 61.9%, 0%, 29%)
CIE-LAB	lab(35.36, 33.42, -60.11)
CIE-LCH	lch(35.36, 68.77, 299.07°)
OKLab	oklab(45.63% 0.0156 -0.1732)
OKLCH	oklch(45.63% 0.174 275.2)
XYZ	xyz(12.5802, 8.6814, 44.7198)
Luminance	0.0868 (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

#4045B5 #B5B040

analogous

#407FB5 #4045B5 #7540B5

triadic

#4045B5 #B54045 #45B540

tetradic

#4045B5 #B5407F #B5B040 #40B575

square

#4045B5 #B5407F #B5B040 #40B575

split-complementary

#4045B5 #B57540 #7FB540

monochromatic

#20235B #303488 #4045B5 #686DCA #9699DA

Accessibility & contrast

On white

7.67

#4045B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#4045B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4045B5

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4045B5	#FFFFFF	#000000	##FFFFFF
##4045B5	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B9

Deuteranopia (green-blind)

#004EB3

Tritanopia (blue-blind)

#006176

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4045b5;
/* rgb */ color: rgb(64, 69, 181);
/* oklch */ color: oklch(45.6% 0.174 275.2);

Tailwind

colors: {
  custom: {
    50: '#8279cc',
    500: '#4045b5',
    950: '#000000',
  },
}

SCSS

$custom: #4045b5;
$custom-light: #8279cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4045b5",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 181
  },
  "hsl": {
    "h": 237.436,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45629,
    "c": 0.17386,
    "h": 275.2
  },
  "luminance": 0.08682
}

Semantic roles & 50–950 ramp

primary

#4045B5

secondary

#C5C38B

accent

#D250D7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #4045B5

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

Preview Lab → · Contrast checker → · Palette generator →