#2F57B7#2F57B7

#2F57B7 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.4% C 0.159 H 264.2°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#2F57B7
RGB	rgb(47, 87, 183)
HSL	hsl(222, 59%, 45%)
HSV	hsv(222, 74%, 72%)
CMYK	cmyk(74.3%, 52.5%, 0%, 28.2%)
CIE-LAB	lab(39.31, 20.05, -54.92)
CIE-LCH	lch(39.31, 58.47, 290.05°)
OKLab	oklab(48.39% -0.0159 -0.1581)
OKLCH	oklch(48.39% 0.159 264.2)
XYZ	xyz(13.1247, 10.8382, 46.1908)
Luminance	0.1084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57B7 #B78F2F

analogous

#2F9BB7 #2F57B7 #4B2FB7

triadic

#2F57B7 #B72F57 #57B72F

tetradic

#2F57B7 #B72F9B #B78F2F #2FB74B

square

#2F57B7 #B72F9B #B78F2F #2FB74B

split-complementary

#2F57B7 #B74B2F #9BB72F

monochromatic

#162956 #224086 #2F57B7 #5177D2 #829DDF

Accessibility & contrast

On white

6.63

#2F57B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#2F57B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57B7

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57B7	#FFFFFF	#000000	##FFFFFF
##2F57B7	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1563BA

Deuteranopia (green-blind)

#0057B5

Tritanopia (blue-blind)

#006E7E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2f57b7;
/* rgb */ color: rgb(47, 87, 183);
/* oklch */ color: oklch(48.4% 0.159 264.2);

Tailwind

colors: {
  custom: {
    50: '#7a85cd',
    500: '#2f57b7',
    950: '#000000',
  },
}

SCSS

$custom: #2f57b7;
$custom-light: #7a85cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57b7",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 183
  },
  "hsl": {
    "h": 222.353,
    "s": 59.13,
    "l": 45.098
  },
  "oklch": {
    "l": 0.48386,
    "c": 0.15886,
    "h": 264.2
  },
  "luminance": 0.1084
}

Semantic roles & 50–950 ramp

primary

#2F57B7

secondary

#C8B17A

accent

#B445E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #2F57B7

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

Preview Lab → · Contrast checker → · Palette generator →