#2F57B4#2F57B4

#2F57B4 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.2% C 0.155 H 264.0°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#2F57B4
RGB	rgb(47, 87, 180)
HSL	hsl(222, 59%, 45%)
HSV	hsv(222, 74%, 71%)
CMYK	cmyk(73.9%, 51.7%, 0%, 29.4%)
CIE-LAB	lab(39.10, 18.91, -53.50)
CIE-LCH	lch(39.10, 56.74, 289.47°)
OKLab	oklab(48.16% -0.0162 -0.1539)
OKLCH	oklch(48.16% 0.155 264)
XYZ	xyz(12.8158, 10.7146, 44.5639)
Luminance	0.1072 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57B4 #B48C2F

analogous

#2F9AB4 #2F57B4 #4A2FB4

triadic

#2F57B4 #B42F57 #57B42F

tetradic

#2F57B4 #B42F9A #B48C2F #2FB44A

square

#2F57B4 #B42F9A #B48C2F #2FB44A

split-complementary

#2F57B4 #B44A2F #9AB42F

monochromatic

#162853 #224083 #2F57B4 #4F76D1 #809CDE

Accessibility & contrast

On white

6.68

#2F57B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#2F57B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57B4

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57B4	#FFFFFF	#000000	##FFFFFF
##2F57B4	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B63B7

Deuteranopia (green-blind)

#0056B2

Tritanopia (blue-blind)

#006D7D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2f57b4;
/* rgb */ color: rgb(47, 87, 180);
/* oklch */ color: oklch(48.2% 0.155 264.0);

Tailwind

colors: {
  custom: {
    50: '#7a85cb',
    500: '#2f57b4',
    950: '#000000',
  },
}

SCSS

$custom: #2f57b4;
$custom-light: #7a85cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57b4",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 180
  },
  "hsl": {
    "h": 221.955,
    "s": 58.59,
    "l": 44.51
  },
  "oklch": {
    "l": 0.48159,
    "c": 0.15473,
    "h": 264
  },
  "luminance": 0.10716
}

Semantic roles & 50–950 ramp

primary

#2F57B4

secondary

#C7AF78

accent

#B346E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2F57B4

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

Preview Lab → · Contrast checker → · Palette generator →