#2F55B7#2F55B7

#2F55B7 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.0% C 0.161 H 264.9°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#2F55B7
RGB	rgb(47, 85, 183)
HSL	hsl(223, 59%, 45%)
HSV	hsv(223, 74%, 72%)
CMYK	cmyk(74.3%, 53.6%, 0%, 28.2%)
CIE-LAB	lab(38.76, 21.36, -55.81)
CIE-LCH	lch(38.76, 59.76, 290.94°)
OKLab	oklab(47.97% -0.0143 -0.1607)
OKLCH	oklch(47.97% 0.161 264.9)
XYZ	xyz(12.9650, 10.5188, 46.1376)
Luminance	0.1052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F55B7 #B7912F

analogous

#2F99B7 #2F55B7 #4D2FB7

triadic

#2F55B7 #B72F55 #55B72F

tetradic

#2F55B7 #B72F99 #B7912F #2FB74D

square

#2F55B7 #B72F99 #B7912F #2FB74D

split-complementary

#2F55B7 #B74D2F #99B72F

monochromatic

#162856 #223E86 #2F55B7 #5175D2 #829CDF

Accessibility & contrast

On white

6.77

#2F55B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#2F55B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F55B7

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F55B7	#FFFFFF	#000000	##FFFFFF
##2F55B7	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A62BA

Deuteranopia (green-blind)

#0055B5

Tritanopia (blue-blind)

#006D7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2f55b7;
/* rgb */ color: rgb(47, 85, 183);
/* oklch */ color: oklch(48.0% 0.161 264.9);

Tailwind

colors: {
  custom: {
    50: '#7a84cd',
    500: '#2f55b7',
    950: '#000000',
  },
}

SCSS

$custom: #2f55b7;
$custom-light: #7a84cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2f55b7",
  "rgb": {
    "r": 47,
    "g": 85,
    "b": 183
  },
  "hsl": {
    "h": 223.235,
    "s": 59.13,
    "l": 45.098
  },
  "oklch": {
    "l": 0.4797,
    "c": 0.16134,
    "h": 264.9
  },
  "luminance": 0.1052
}

Semantic roles & 50–950 ramp

primary

#2F55B7

secondary

#C8B27A

accent

#B645E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2F55B7

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

Preview Lab → · Contrast checker → · Palette generator →