#2A18B3#2A18B3

#2A18B3 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.8% C 0.220 H 273.2°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#2A18B3
RGB	rgb(42, 24, 179)
HSL	hsl(247, 76%, 40%)
HSV	hsv(247, 87%, 70%)
CMYK	cmyk(76.5%, 86.6%, 0%, 29.8%)
CIE-LAB	lab(24.95, 54.84, -76.12)
CIE-LCH	lch(24.95, 93.82, 305.77°)
OKLab	oklab(37.77% 0.0123 -0.2201)
OKLCH	oklch(37.77% 0.22 273.2)
XYZ	xyz(9.4155, 4.3992, 42.9920)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A18B3 #A1B318

analogous

#1853B3 #2A18B3 #7818B3

triadic

#2A18B3 #B32A18 #18B32A

tetradic

#2A18B3 #B31853 #A1B318 #18B378

square

#2A18B3 #B31853 #A1B318 #18B378

split-complementary

#2A18B3 #B37818 #53B318

monochromatic

#110A47 #1D117D #2A18B3 #3C26E2 #6D5CE9

Accessibility & contrast

On white

11.17

#2A18B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2A18B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A18B3

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A18B3	#FFFFFF	#000000	##FFFFFF
##2A18B3	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B7

Deuteranopia (green-blind)

#0034B0

Tritanopia (blue-blind)

#004C6A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2a18b3;
/* rgb */ color: rgb(42, 24, 179);
/* oklch */ color: oklch(37.8% 0.220 273.2);

Tailwind

colors: {
  custom: {
    50: '#7d5ccb',
    500: '#2a18b3',
    950: '#000000',
  },
}

SCSS

$custom: #2a18b3;
$custom-light: #7d5ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#2a18b3",
  "rgb": {
    "r": 42,
    "g": 24,
    "b": 179
  },
  "hsl": {
    "h": 246.968,
    "s": 76.355,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37772,
    "c": 0.22042,
    "h": 273.2
  },
  "luminance": 0.044
}

Semantic roles & 50–950 ramp

primary

#2A18B3

secondary

#C0CD5A

accent

#F335DD

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0414

muted

#7D7982

Preview Lab

Preview with #2A18B3

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

Preview Lab → · Contrast checker → · Palette generator →