#2F55B9#2F55B9

#2F55B9 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.1% C 0.164 H 265.0°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#2F55B9
RGB	rgb(47, 85, 185)
HSL	hsl(223, 59%, 45%)
HSV	hsv(223, 75%, 73%)
CMYK	cmyk(74.6%, 54.1%, 0%, 27.5%)
CIE-LAB	lab(38.90, 22.11, -56.75)
CIE-LCH	lch(38.90, 60.90, 291.29°)
OKLab	oklab(48.13% -0.0142 -0.1635)
OKLCH	oklch(48.13% 0.164 265)
XYZ	xyz(13.1747, 10.6027, 47.2417)
Luminance	0.1060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F55B9 #B9932F

analogous

#2F9AB9 #2F55B9 #4E2FB9

triadic

#2F55B9 #B92F55 #55B92F

tetradic

#2F55B9 #B92F9A #B9932F #2FB94E

square

#2F55B9 #B92F9A #B9932F #2FB94E

split-complementary

#2F55B9 #B94E2F #9AB92F

monochromatic

#162857 #233F88 #2F55B9 #5276D3 #839CDF

Accessibility & contrast

On white

6.73

#2F55B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#2F55B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F55B9

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F55B9	#FFFFFF	#000000	##FFFFFF
##2F55B9	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0262BD

Deuteranopia (green-blind)

#0056B7

Tritanopia (blue-blind)

#006D7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2f55b9;
/* rgb */ color: rgb(47, 85, 185);
/* oklch */ color: oklch(48.1% 0.164 265.0);

Tailwind

colors: {
  custom: {
    50: '#7b84cf',
    500: '#2f55b9',
    950: '#000000',
  },
}

SCSS

$custom: #2f55b9;
$custom-light: #7b84cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2f55b9",
  "rgb": {
    "r": 47,
    "g": 85,
    "b": 185
  },
  "hsl": {
    "h": 223.478,
    "s": 59.483,
    "l": 45.49
  },
  "oklch": {
    "l": 0.48126,
    "c": 0.16408,
    "h": 265
  },
  "luminance": 0.10604
}

Semantic roles & 50–950 ramp

primary

#2F55B9

secondary

#C9B37B

accent

#B745E3

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2F55B9

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

Preview Lab → · Contrast checker → · Palette generator →