#2818A1#2818A1

#2818A1 is a dark, highly saturated blue. Relative luminance 0.037; OKLCH L 35.5% C 0.201 H 274.3°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#2818A1
RGB	rgb(40, 24, 161)
HSL	hsl(247, 74%, 36%)
HSV	hsv(247, 85%, 63%)
CMYK	cmyk(75.2%, 85.1%, 0%, 36.9%)
CIE-LAB	lab(22.57, 49.45, -69.21)
CIE-LCH	lch(22.57, 85.06, 305.55°)
OKLab	oklab(35.47% 0.0149 -0.2001)
OKLCH	oklch(35.47% 0.201 274.3)
XYZ	xyz(7.6326, 3.6768, 34.0187)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2818A1 #91A118

analogous

#184DA1 #2818A1 #6D18A1

triadic

#2818A1 #A12818 #18A128

tetradic

#2818A1 #A1184D #91A118 #18A16D

square

#2818A1 #A1184D #91A118 #18A16D

split-complementary

#2818A1 #A16D18 #4DA118

monochromatic

#0E0836 #1B106C #2818A1 #3520D6 #604FE5

Accessibility & contrast

On white

12.10

#2818A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#2818A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2818A1

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2818A1	#FFFFFF	#000000	##FFFFFF
##2818A1	1.00	12.10	1.74	12.10
#FFFFFF	12.10	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.10	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: #2818a1;
/* rgb */ color: rgb(40, 24, 161);
/* oklch */ color: oklch(35.5% 0.201 274.3);

Tailwind

colors: {
  custom: {
    50: '#785bbe',
    500: '#2818a1',
    950: '#000000',
  },
}

SCSS

$custom: #2818a1;
$custom-light: #785bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#2818a1",
  "rgb": {
    "r": 40,
    "g": 24,
    "b": 161
  },
  "hsl": {
    "h": 247.007,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.3547,
    "c": 0.20064,
    "h": 274.3
  },
  "luminance": 0.03678
}

Semantic roles & 50–950 ramp

primary

#2818A1

secondary

#B9C74E

accent

#F137DB

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #2818A1

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

Preview Lab → · Contrast checker → · Palette generator →