#2817A1#2817A1

#2817A1 is a dark, highly saturated blue. Relative luminance 0.036; OKLCH L 35.4% C 0.201 H 274.3°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#2817A1
RGB	rgb(40, 23, 161)
HSL	hsl(247, 75%, 36%)
HSV	hsv(247, 86%, 63%)
CMYK	cmyk(75.2%, 85.7%, 0%, 36.9%)
CIE-LAB	lab(22.43, 49.88, -69.44)
CIE-LCH	lch(22.43, 85.50, 305.69°)
OKLab	oklab(35.37% 0.0152 -0.2008)
OKLCH	oklch(35.37% 0.201 274.3)
XYZ	xyz(7.6124, 3.6363, 34.0120)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2817A1 #90A117

analogous

#174BA1 #2817A1 #6D17A1

triadic

#2817A1 #A12817 #17A128

tetradic

#2817A1 #A1174B #90A117 #17A16D

square

#2817A1 #A1174B #90A117 #17A16D

split-complementary

#2817A1 #A16D17 #4BA117

monochromatic

#0D0836 #1B0F6B #2817A1 #351FD7 #604DE6

Accessibility & contrast

On white

12.16

#2817A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#2817A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2817A1

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2817A1	#FFFFFF	#000000	##FFFFFF
##2817A1	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA5

Deuteranopia (green-blind)

#002F9F

Tritanopia (blue-blind)

#00455F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #2817a1;
/* rgb */ color: rgb(40, 23, 161);
/* oklch */ color: oklch(35.4% 0.201 274.3);

Tailwind

colors: {
  custom: {
    50: '#785abe',
    500: '#2817a1',
    950: '#000000',
  },
}

SCSS

$custom: #2817a1;
$custom-light: #785abe;
$custom-dark: #000000;

JSON

{
  "hex": "#2817a1",
  "rgb": {
    "r": 40,
    "g": 23,
    "b": 161
  },
  "hsl": {
    "h": 247.391,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.35373,
    "c": 0.20132,
    "h": 274.3
  },
  "luminance": 0.03637
}

Semantic roles & 50–950 ramp

primary

#2817A1

secondary

#B8C74C

accent

#F236DB

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #2817A1

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

Preview Lab → · Contrast checker → · Palette generator →