#2F28B2#2F28B2

#2F28B2 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.7% C 0.206 H 273.9°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#2F28B2
RGB	rgb(47, 40, 178)
HSL	hsl(243, 63%, 43%)
HSV	hsv(243, 78%, 70%)
CMYK	cmyk(73.6%, 77.5%, 0%, 30.2%)
CIE-LAB	lab(27.67, 47.53, -71.00)
CIE-LCH	lch(27.67, 85.44, 303.80°)
OKLab	oklab(39.71% 0.014 -0.2054)
OKLCH	oklch(39.71% 0.206 273.9)
XYZ	xyz(9.9643, 5.3353, 42.6155)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F28B2 #ABB228

analogous

#2866B2 #2F28B2 #7428B2

triadic

#2F28B2 #B22F28 #28B22F

tetradic

#2F28B2 #B22866 #ABB228 #28B274

square

#2F28B2 #B22866 #ABB228 #28B274

split-complementary

#2F28B2 #B27428 #66B228

monochromatic

#15124E #221D80 #2F28B2 #4A43D5 #7A75E0

Accessibility & contrast

On white

10.16

#2F28B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2F28B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F28B2

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F28B2	#FFFFFF	#000000	##FFFFFF
##2F28B2	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B6

Deuteranopia (green-blind)

#003BB0

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2f28b2;
/* rgb */ color: rgb(47, 40, 178);
/* oklch */ color: oklch(39.7% 0.206 273.9);

Tailwind

colors: {
  custom: {
    50: '#7d65ca',
    500: '#2f28b2',
    950: '#000000',
  },
}

SCSS

$custom: #2f28b2;
$custom-light: #7d65ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f28b2",
  "rgb": {
    "r": 47,
    "g": 40,
    "b": 178
  },
  "hsl": {
    "h": 243.043,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.39709,
    "c": 0.20589,
    "h": 273.9
  },
  "luminance": 0.05336
}

Semantic roles & 50–950 ramp

primary

#2F28B2

secondary

#C3C76F

accent

#E641DE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2F28B2

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

Preview Lab → · Contrast checker → · Palette generator →