#2931B1#2931B1

#2931B1 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.5% C 0.198 H 270.9°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#2931B1
RGB	rgb(41, 49, 177)
HSL	hsl(236, 62%, 43%)
HSV	hsv(236, 77%, 69%)
CMYK	cmyk(76.8%, 72.3%, 0%, 30.6%)
CIE-LAB	lab(29.01, 41.61, -68.21)
CIE-LCH	lch(29.01, 79.90, 301.39°)
OKLab	oklab(40.53% 0.0033 -0.1975)
OKLCH	oklch(40.53% 0.198 270.9)
XYZ	xyz(9.9459, 5.8413, 42.1898)
Luminance	0.0584 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.36

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2931B1 #B1A929

analogous

#2975B1 #2931B1 #6529B1

triadic

#2931B1 #B12931 #31B129

tetradic

#2931B1 #B12975 #B1A929 #29B165

square

#2931B1 #B12975 #B1A929 #29B165

split-complementary

#2931B1 #B16529 #75B129

monochromatic

#12154E #1D237F #2931B1 #444CD4 #757CDF

Accessibility & contrast

On white

9.68

#2931B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2931B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2931B1

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2931B1	#FFFFFF	#000000	##FFFFFF
##2931B1	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB5

Deuteranopia (green-blind)

#003EAF

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2931b1;
/* rgb */ color: rgb(41, 49, 177);
/* oklch */ color: oklch(40.5% 0.198 270.9);

Tailwind

colors: {
  custom: {
    50: '#7a6aca',
    500: '#2931b1',
    950: '#000000',
  },
}

SCSS

$custom: #2931b1;
$custom-light: #7a6aca;
$custom-dark: #000000;

JSON

{
  "hex": "#2931b1",
  "rgb": {
    "r": 41,
    "g": 49,
    "b": 177
  },
  "hsl": {
    "h": 236.471,
    "s": 62.385,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40533,
    "c": 0.1975,
    "h": 270.9
  },
  "luminance": 0.05842
}

Semantic roles & 50–950 ramp

primary

#2931B1

secondary

#C7C16F

accent

#DC42E5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2931B1

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

Preview Lab → · Contrast checker → · Palette generator →