#2931B3#2931B3

#2931B3 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.7% C 0.200 H 270.9°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#2931B3
RGB	rgb(41, 49, 179)
HSL	hsl(237, 63%, 43%)
HSV	hsv(237, 77%, 70%)
CMYK	cmyk(77.1%, 72.6%, 0%, 29.8%)
CIE-LAB	lab(29.21, 42.30, -69.06)
CIE-LCH	lch(29.21, 80.99, 301.49°)
OKLab	oklab(40.74% 0.003 -0.2)
OKLCH	oklch(40.74% 0.2 270.9)
XYZ	xyz(10.1467, 5.9216, 43.2473)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2931B3 #B3AB29

analogous

#2976B3 #2931B3 #6629B3

triadic

#2931B3 #B32931 #31B329

tetradic

#2931B3 #B32976 #B3AB29 #29B366

square

#2931B3 #B32976 #B3AB29 #29B366

split-complementary

#2931B3 #B36629 #76B329

monochromatic

#12164F #1E2381 #2931B3 #454DD4 #777DE0

Accessibility & contrast

On white

9.61

#2931B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2931B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2931B3

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2931B3	#FFFFFF	#000000	##FFFFFF
##2931B3	1.00	9.61	2.18	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB7

Deuteranopia (green-blind)

#003EB1

Tritanopia (blue-blind)

#00566F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2931b3;
/* rgb */ color: rgb(41, 49, 179);
/* oklch */ color: oklch(40.7% 0.200 270.9);

Tailwind

colors: {
  custom: {
    50: '#7a6acb',
    500: '#2931b3',
    950: '#000000',
  },
}

SCSS

$custom: #2931b3;
$custom-light: #7a6acb;
$custom-dark: #000000;

JSON

{
  "hex": "#2931b3",
  "rgb": {
    "r": 41,
    "g": 49,
    "b": 179
  },
  "hsl": {
    "h": 236.522,
    "s": 62.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40741,
    "c": 0.19998,
    "h": 270.9
  },
  "luminance": 0.05923
}

Semantic roles & 50–950 ramp

primary

#2931B3

secondary

#C7C270

accent

#DC42E6

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2931B3

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

Preview Lab → · Contrast checker → · Palette generator →