#3545A8#3545A8

#3545A8 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.9% C 0.159 H 271.3°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#3545A8
RGB	rgb(53, 69, 168)
HSL	hsl(232, 52%, 43%)
HSV	hsv(232, 68%, 66%)
CMYK	cmyk(68.5%, 58.9%, 0%, 34.1%)
CIE-LAB	lab(33.65, 27.15, -55.20)
CIE-LCH	lch(33.65, 61.52, 296.19°)
OKLab	oklab(43.85% 0.0036 -0.159)
OKLCH	oklch(43.85% 0.159 271.3)
XYZ	xyz(10.6618, 7.8393, 37.9895)
Luminance	0.0784 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3545A8 #A89835

analogous

#357EA8 #3545A8 #5E35A8

triadic

#3545A8 #A83545 #45A835

tetradic

#3545A8 #A8357E #A89835 #35A85E

square

#3545A8 #A8357E #A89835 #35A85E

split-complementary

#3545A8 #A85E35 #7EA835

monochromatic

#181F4B #263279 #3545A8 #5262C8 #808CD7

Accessibility & contrast

On white

8.18

#3545A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3545A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3545A8

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3545A8	#FFFFFF	#000000	##FFFFFF
##3545A8	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AB

Deuteranopia (green-blind)

#004AA6

Tritanopia (blue-blind)

#005D6F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3545a8;
/* rgb */ color: rgb(53, 69, 168);
/* oklch */ color: oklch(43.9% 0.159 271.3);

Tailwind

colors: {
  custom: {
    50: '#7b78c3',
    500: '#3545a8',
    950: '#000000',
  },
}

SCSS

$custom: #3545a8;
$custom-light: #7b78c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3545a8",
  "rgb": {
    "r": 53,
    "g": 69,
    "b": 168
  },
  "hsl": {
    "h": 231.652,
    "s": 52.036,
    "l": 43.333
  },
  "oklch": {
    "l": 0.43854,
    "c": 0.15906,
    "h": 271.3
  },
  "luminance": 0.0784
}

Semantic roles & 50–950 ramp

primary

#3545A8

secondary

#C0B678

accent

#C84CDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3545A8

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

Preview Lab → · Contrast checker → · Palette generator →