#2B28B3#2B28B3

#2B28B3 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.6% C 0.208 H 272.5°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#2B28B3
RGB	rgb(43, 40, 179)
HSL	hsl(241, 63%, 43%)
HSV	hsv(241, 78%, 70%)
CMYK	cmyk(76%, 77.7%, 0%, 29.8%)
CIE-LAB	lab(27.53, 47.53, -71.84)
CIE-LCH	lch(27.53, 86.14, 303.49°)
OKLab	oklab(39.58% 0.0089 -0.2079)
OKLCH	oklch(39.58% 0.208 272.5)
XYZ	xyz(9.8890, 5.2848, 43.1380)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B28B3 #B0B328

analogous

#286AB3 #2B28B3 #7028B3

triadic

#2B28B3 #B32B28 #28B32B

tetradic

#2B28B3 #B3286A #B0B328 #28B370

square

#2B28B3 #B3286A #B0B328 #28B370

split-complementary

#2B28B3 #B37028 #6AB328

monochromatic

#13124F #1F1D81 #2B28B3 #4643D5 #7875E0

Accessibility & contrast

On white

10.21

#2B28B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#2B28B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B28B3

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B28B3	#FFFFFF	#000000	##FFFFFF
##2B28B3	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B7

Deuteranopia (green-blind)

#003AB1

Tritanopia (blue-blind)

#00526D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2b28b3;
/* rgb */ color: rgb(43, 40, 179);
/* oklch */ color: oklch(39.6% 0.208 272.5);

Tailwind

colors: {
  custom: {
    50: '#7c65cb',
    500: '#2b28b3',
    950: '#000000',
  },
}

SCSS

$custom: #2b28b3;
$custom-light: #7c65cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b28b3",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 179
  },
  "hsl": {
    "h": 241.295,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.39578,
    "c": 0.2081,
    "h": 272.5
  },
  "luminance": 0.05286
}

Semantic roles & 50–950 ramp

primary

#2B28B3

secondary

#C6C86F

accent

#E641E3

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2B28B3

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

Preview Lab → · Contrast checker → · Palette generator →