#3545A5#3545A5

#3545A5 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.6% C 0.155 H 271.3°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#3545A5
RGB	rgb(53, 69, 165)
HSL	hsl(231, 51%, 43%)
HSV	hsv(231, 68%, 65%)
CMYK	cmyk(67.9%, 58.2%, 0%, 35.3%)
CIE-LAB	lab(33.41, 26.06, -53.79)
CIE-LCH	lch(33.41, 59.76, 295.85°)
OKLab	oklab(43.61% 0.0035 -0.1549)
OKLCH	oklch(43.61% 0.155 271.3)
XYZ	xyz(10.3856, 7.7288, 36.5345)
Luminance	0.0773 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3545A5 #A59535

analogous

#357DA5 #3545A5 #5D35A5

triadic

#3545A5 #A53545 #45A535

tetradic

#3545A5 #A5357D #A59535 #35A55D

square

#3545A5 #A5357D #A59535 #35A55D

split-complementary

#3545A5 #A55D35 #7DA535

monochromatic

#171E48 #263277 #3545A5 #5061C7 #7F8BD6

Accessibility & contrast

On white

8.25

#3545A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3545A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3545A5

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3545A5	#FFFFFF	#000000	##FFFFFF
##3545A5	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A8

Deuteranopia (green-blind)

#004AA3

Tritanopia (blue-blind)

#005C6E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3545a5;
/* rgb */ color: rgb(53, 69, 165);
/* oklch */ color: oklch(43.6% 0.155 271.3);

Tailwind

colors: {
  custom: {
    50: '#7a78c0',
    500: '#3545a5',
    950: '#000000',
  },
}

SCSS

$custom: #3545a5;
$custom-light: #7a78c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3545a5",
  "rgb": {
    "r": 53,
    "g": 69,
    "b": 165
  },
  "hsl": {
    "h": 231.429,
    "s": 51.376,
    "l": 42.745
  },
  "oklch": {
    "l": 0.43606,
    "c": 0.1549,
    "h": 271.3
  },
  "luminance": 0.0773
}

Semantic roles & 50–950 ramp

primary

#3545A5

secondary

#BFB577

accent

#C74DDB

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3545A5

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

Preview Lab → · Contrast checker → · Palette generator →