#3531B7#3531B7

#3531B7 is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 41.8% C 0.202 H 274.6°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#3531B7
RGB	rgb(53, 49, 183)
HSL	hsl(242, 58%, 45%)
HSV	hsv(242, 73%, 72%)
CMYK	cmyk(71%, 73.2%, 0%, 28.2%)
CIE-LAB	lab(30.33, 44.78, -69.57)
CIE-LCH	lch(30.33, 82.74, 302.77°)
OKLab	oklab(41.85% 0.0161 -0.2012)
OKLCH	oklch(41.85% 0.202 274.6)
XYZ	xyz(11.1109, 6.3713, 45.4348)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.72

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3531B7 #B3B731

analogous

#3170B7 #3531B7 #7831B7

triadic

#3531B7 #B73531 #31B735

tetradic

#3531B7 #B73170 #B3B731 #31B778

square

#3531B7 #B73170 #B3B731 #31B778

split-complementary

#3531B7 #B77831 #70B731

monochromatic

#191756 #272487 #3531B7 #5854D1 #8784DE

Accessibility & contrast

On white

9.23

#3531B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#3531B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3531B7

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3531B7	#FFFFFF	#000000	##FFFFFF
##3531B7	1.00	9.23	2.27	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBB

Deuteranopia (green-blind)

#0041B5

Tritanopia (blue-blind)

#005771

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3531b7;
/* rgb */ color: rgb(53, 49, 183);
/* oklch */ color: oklch(41.8% 0.202 274.6);

Tailwind

colors: {
  custom: {
    50: '#806bce',
    500: '#3531b7',
    950: '#000000',
  },
}

SCSS

$custom: #3531b7;
$custom-light: #806bce;
$custom-dark: #000000;

JSON

{
  "hex": "#3531b7",
  "rgb": {
    "r": 53,
    "g": 49,
    "b": 183
  },
  "hsl": {
    "h": 241.791,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.41849,
    "c": 0.20182,
    "h": 274.6
  },
  "luminance": 0.06372
}

Semantic roles & 50–950 ramp

primary

#3531B7

secondary

#C5C87C

accent

#E147DC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3531B7

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

Preview Lab → · Contrast checker → · Palette generator →