#2F55B5#2F55B5

#2F55B5 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.8% C 0.159 H 264.7°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#2F55B5
RGB	rgb(47, 85, 181)
HSL	hsl(223, 59%, 45%)
HSV	hsv(223, 74%, 71%)
CMYK	cmyk(74%, 53%, 0%, 29%)
CIE-LAB	lab(38.61, 20.60, -54.87)
CIE-LCH	lch(38.61, 58.61, 290.58°)
OKLab	oklab(47.82% -0.0145 -0.1579)
OKLCH	oklch(47.82% 0.159 264.7)
XYZ	xyz(12.7583, 10.4362, 45.0491)
Luminance	0.1044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F55B5 #B58F2F

analogous

#2F98B5 #2F55B5 #4C2FB5

triadic

#2F55B5 #B52F55 #55B52F

tetradic

#2F55B5 #B52F98 #B58F2F #2FB54C

square

#2F55B5 #B52F98 #B58F2F #2FB54C

split-complementary

#2F55B5 #B54C2F #98B52F

monochromatic

#162754 #223E84 #2F55B5 #5075D1 #809BDE

Accessibility & contrast

On white

6.80

#2F55B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#2F55B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F55B5

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F55B5	#FFFFFF	#000000	##FFFFFF
##2F55B5	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1061B8

Deuteranopia (green-blind)

#0055B3

Tritanopia (blue-blind)

#006C7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2f55b5;
/* rgb */ color: rgb(47, 85, 181);
/* oklch */ color: oklch(47.8% 0.159 264.7);

Tailwind

colors: {
  custom: {
    50: '#7a84cc',
    500: '#2f55b5',
    950: '#000000',
  },
}

SCSS

$custom: #2f55b5;
$custom-light: #7a84cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f55b5",
  "rgb": {
    "r": 47,
    "g": 85,
    "b": 181
  },
  "hsl": {
    "h": 222.985,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.47816,
    "c": 0.1586,
    "h": 264.7
  },
  "luminance": 0.10438
}

Semantic roles & 50–950 ramp

primary

#2F55B5

secondary

#C7B179

accent

#B646E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #2F55B5

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

Preview Lab → · Contrast checker → · Palette generator →