#2F57B2#2F57B2

#2F57B2 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.0% C 0.152 H 263.8°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#2F57B2
RGB	rgb(47, 87, 178)
HSL	hsl(222, 58%, 44%)
HSV	hsv(222, 74%, 70%)
CMYK	cmyk(73.6%, 51.1%, 0%, 30.2%)
CIE-LAB	lab(38.96, 18.15, -52.55)
CIE-LCH	lch(38.96, 55.59, 289.06°)
OKLab	oklab(48.01% -0.0165 -0.1511)
OKLCH	oklch(48.01% 0.152 263.8)
XYZ	xyz(12.6135, 10.6337, 43.4986)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57B2 #B28A2F

analogous

#2F99B2 #2F57B2 #482FB2

triadic

#2F57B2 #B22F57 #57B22F

tetradic

#2F57B2 #B22F99 #B28A2F #2FB248

square

#2F57B2 #B22F99 #B28A2F #2FB248

split-complementary

#2F57B2 #B2482F #99B22F

monochromatic

#152851 #223F82 #2F57B2 #4E76D0 #7E9BDD

Accessibility & contrast

On white

6.72

#2F57B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#2F57B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57B2

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57B2	#FFFFFF	#000000	##FFFFFF
##2F57B2	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F62B5

Deuteranopia (green-blind)

#0056B0

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2f57b2;
/* rgb */ color: rgb(47, 87, 178);
/* oklch */ color: oklch(48.0% 0.152 263.8);

Tailwind

colors: {
  custom: {
    50: '#7985ca',
    500: '#2f57b2',
    950: '#000000',
  },
}

SCSS

$custom: #2f57b2;
$custom-light: #7985ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57b2",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 178
  },
  "hsl": {
    "h": 221.679,
    "s": 58.222,
    "l": 44.118
  },
  "oklch": {
    "l": 0.48009,
    "c": 0.15197,
    "h": 263.8
  },
  "luminance": 0.10635
}

Semantic roles & 50–950 ramp

primary

#2F57B2

secondary

#C6AE77

accent

#B246E1

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2F57B2

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

Preview Lab → · Contrast checker → · Palette generator →