#2F55B8#2F55B8

#2F55B8 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.0% C 0.163 H 265.0°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#2F55B8
RGB	rgb(47, 85, 184)
HSL	hsl(223, 59%, 45%)
HSV	hsv(223, 74%, 72%)
CMYK	cmyk(74.5%, 53.8%, 0%, 27.8%)
CIE-LAB	lab(38.83, 21.74, -56.28)
CIE-LCH	lch(38.83, 60.33, 291.12°)
OKLab	oklab(48.05% -0.0142 -0.1621)
OKLCH	oklch(48.05% 0.163 265)
XYZ	xyz(13.0695, 10.5606, 46.6877)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F55B8 #B8922F

analogous

#2F99B8 #2F55B8 #4E2FB8

triadic

#2F55B8 #B82F55 #55B82F

tetradic

#2F55B8 #B82F99 #B8922F #2FB84E

square

#2F55B8 #B82F99 #B8922F #2FB84E

split-complementary

#2F55B8 #B84E2F #99B82F

monochromatic

#162857 #233E87 #2F55B8 #5275D3 #829CDF

Accessibility & contrast

On white

6.75

#2F55B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#2F55B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F55B8

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F55B8	#FFFFFF	#000000	##FFFFFF
##2F55B8	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0662BB

Deuteranopia (green-blind)

#0055B6

Tritanopia (blue-blind)

#006D7E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2f55b8;
/* rgb */ color: rgb(47, 85, 184);
/* oklch */ color: oklch(48.0% 0.163 265.0);

Tailwind

colors: {
  custom: {
    50: '#7b84ce',
    500: '#2f55b8',
    950: '#000000',
  },
}

SCSS

$custom: #2f55b8;
$custom-light: #7b84ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2f55b8",
  "rgb": {
    "r": 47,
    "g": 85,
    "b": 184
  },
  "hsl": {
    "h": 223.358,
    "s": 59.307,
    "l": 45.294
  },
  "oklch": {
    "l": 0.48048,
    "c": 0.16272,
    "h": 265
  },
  "luminance": 0.10562
}

Semantic roles & 50–950 ramp

primary

#2F55B8

secondary

#C8B37B

accent

#B745E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2F55B8

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

Preview Lab → · Contrast checker → · Palette generator →