#2F55B2#2F55B2

#2F55B2 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.6% C 0.154 H 264.5°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#2F55B2
RGB	rgb(47, 85, 178)
HSL	hsl(223, 58%, 44%)
HSV	hsv(223, 74%, 70%)
CMYK	cmyk(73.6%, 52.2%, 0%, 30.2%)
CIE-LAB	lab(38.40, 19.47, -53.45)
CIE-LCH	lch(38.40, 56.88, 290.02°)
OKLab	oklab(47.59% -0.0148 -0.1537)
OKLCH	oklch(47.59% 0.154 264.5)
XYZ	xyz(12.4538, 10.3143, 43.4454)
Luminance	0.1032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F55B2 #B28C2F

analogous

#2F97B2 #2F55B2 #4A2FB2

triadic

#2F55B2 #B22F55 #55B22F

tetradic

#2F55B2 #B22F97 #B28C2F #2FB24A

square

#2F55B2 #B22F97 #B28C2F #2FB24A

split-complementary

#2F55B2 #B24A2F #97B22F

monochromatic

#152751 #223E82 #2F55B2 #4E74D0 #7E9ADD

Accessibility & contrast

On white

6.86

#2F55B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#2F55B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F55B2

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F55B2	#FFFFFF	#000000	##FFFFFF
##2F55B2	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1761B5

Deuteranopia (green-blind)

#0055B0

Tritanopia (blue-blind)

#006B7B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2f55b2;
/* rgb */ color: rgb(47, 85, 178);
/* oklch */ color: oklch(47.6% 0.154 264.5);

Tailwind

colors: {
  custom: {
    50: '#7984ca',
    500: '#2f55b2',
    950: '#000000',
  },
}

SCSS

$custom: #2f55b2;
$custom-light: #7984ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f55b2",
  "rgb": {
    "r": 47,
    "g": 85,
    "b": 178
  },
  "hsl": {
    "h": 222.595,
    "s": 58.222,
    "l": 44.118
  },
  "oklch": {
    "l": 0.47586,
    "c": 0.15446,
    "h": 264.5
  },
  "luminance": 0.10316
}

Semantic roles & 50–950 ramp

primary

#2F55B2

secondary

#C6AF77

accent

#B446E1

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2F55B2

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

Preview Lab → · Contrast checker → · Palette generator →