#4031B2#4031B2

#4031B2 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 42.1% C 0.193 H 279.4°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#4031B2
RGB	rgb(64, 49, 178)
HSL	hsl(247, 57%, 45%)
HSV	hsv(247, 72%, 70%)
CMYK	cmyk(64%, 72.5%, 0%, 30.2%)
CIE-LAB	lab(30.64, 44.43, -66.06)
CIE-LCH	lch(30.64, 79.61, 303.92°)
OKLab	oklab(42.13% 0.0314 -0.1906)
OKLCH	oklch(42.13% 0.193 279.4)
XYZ	xyz(11.2460, 6.5001, 42.7729)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.51

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4031B2 #A3B231

analogous

#3162B2 #4031B2 #8131B2

triadic

#4031B2 #B24031 #31B240

tetradic

#4031B2 #B23162 #A3B231 #31B281

square

#4031B2 #B23162 #A3B231 #31B281

split-complementary

#4031B2 #B28131 #62B231

monochromatic

#1D1752 #2F2482 #4031B2 #6051CF #8C81DC

Accessibility & contrast

On white

9.13

#4031B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#4031B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4031B2

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4031B2	#FFFFFF	#000000	##FFFFFF
##4031B2	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB6

Deuteranopia (green-blind)

#0043B0

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #4031b2;
/* rgb */ color: rgb(64, 49, 178);
/* oklch */ color: oklch(42.1% 0.193 279.4);

Tailwind

colors: {
  custom: {
    50: '#836bca',
    500: '#4031b2',
    950: '#000000',
  },
}

SCSS

$custom: #4031b2;
$custom-light: #836bca;
$custom-dark: #000000;

JSON

{
  "hex": "#4031b2",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 178
  },
  "hsl": {
    "h": 246.977,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42128,
    "c": 0.19321,
    "h": 279.4
  },
  "luminance": 0.06501
}

Semantic roles & 50–950 ramp

primary

#4031B2

secondary

#BDC579

accent

#E048CE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4031B2

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

Preview Lab → · Contrast checker → · Palette generator →