#3540A2#3540A2

#3540A2 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.157 H 272.8°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#3540A2
RGB	rgb(53, 64, 162)
HSL	hsl(234, 51%, 42%)
HSV	hsv(234, 67%, 64%)
CMYK	cmyk(67.3%, 60.5%, 0%, 36.5%)
CIE-LAB	lab(31.88, 28.25, -54.47)
CIE-LCH	lch(31.88, 61.37, 297.41°)
OKLab	oklab(42.39% 0.0078 -0.1569)
OKLCH	oklch(42.39% 0.157 272.8)
XYZ	xyz(9.8210, 7.0314, 35.0151)
Luminance	0.0703 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3540A2 #A29735

analogous

#3577A2 #3540A2 #6135A2

triadic

#3540A2 #A23540 #40A235

tetradic

#3540A2 #A23577 #A29735 #35A261

square

#3540A2 #A23577 #A29735 #35A261

split-complementary

#3540A2 #A26135 #77A235

monochromatic

#171C46 #262E74 #3540A2 #4F5BC5 #7D86D4

Accessibility & contrast

On white

8.73

#3540A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3540A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3540A2

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3540A2	#FFFFFF	#000000	##FFFFFF
##3540A2	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A5

Deuteranopia (green-blind)

#0046A0

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3540a2;
/* rgb */ color: rgb(53, 64, 162);
/* oklch */ color: oklch(42.4% 0.157 272.8);

Tailwind

colors: {
  custom: {
    50: '#7a74be',
    500: '#3540a2',
    950: '#000000',
  },
}

SCSS

$custom: #3540a2;
$custom-light: #7a74be;
$custom-dark: #000000;

JSON

{
  "hex": "#3540a2",
  "rgb": {
    "r": 53,
    "g": 64,
    "b": 162
  },
  "hsl": {
    "h": 233.945,
    "s": 50.698,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42391,
    "c": 0.15713,
    "h": 272.8
  },
  "luminance": 0.07032
}

Semantic roles & 50–950 ramp

primary

#3540A2

secondary

#BDB675

accent

#CC4EDA

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3540A2

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

Preview Lab → · Contrast checker → · Palette generator →