#291F9A#291F9A

#291F9A is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.5% C 0.187 H 274.8°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#291F9A
RGB	rgb(41, 31, 154)
HSL	hsl(245, 66%, 36%)
HSV	hsv(245, 80%, 60%)
CMYK	cmyk(73.4%, 79.9%, 0%, 39.6%)
CIE-LAB	lab(22.94, 44.05, -64.31)
CIE-LCH	lch(22.94, 77.94, 304.41°)
OKLab	oklab(35.5% 0.0157 -0.186)
OKLCH	oklch(35.5% 0.187 274.8)
XYZ	xyz(7.2352, 3.7838, 30.9146)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291F9A #909A1F

analogous

#1F539A #291F9A #671F9A

triadic

#291F9A #9A291F #1F9A29

tetradic

#291F9A #9A1F53 #909A1F #1F9A67

square

#291F9A #9A1F53 #909A1F #1F9A67

split-complementary

#291F9A #9A671F #539A1F

monochromatic

#0E0A34 #1B1567 #291F9A #3729CD #6156DD

Accessibility & contrast

On white

11.95

#291F9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#291F9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291F9A

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291F9A	#FFFFFF	#000000	##FFFFFF
##291F9A	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9D

Deuteranopia (green-blind)

#003198

Tritanopia (blue-blind)

#00455C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #291f9a;
/* rgb */ color: rgb(41, 31, 154);
/* oklch */ color: oklch(35.5% 0.187 274.8);

Tailwind

colors: {
  custom: {
    50: '#765eb9',
    500: '#291f9a',
    950: '#000000',
  },
}

SCSS

$custom: #291f9a;
$custom-light: #765eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#291f9a",
  "rgb": {
    "r": 41,
    "g": 31,
    "b": 154
  },
  "hsl": {
    "h": 244.878,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35504,
    "c": 0.18663,
    "h": 274.8
  },
  "luminance": 0.03784
}

Semantic roles & 50–950 ramp

primary

#291F9A

secondary

#B8C154

accent

#E93EDC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #291F9A

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

Preview Lab → · Contrast checker → · Palette generator →