#2F57BA#2F57BA

#2F57BA is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.6% C 0.163 H 264.5°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#2F57BA
RGB	rgb(47, 87, 186)
HSL	hsl(223, 60%, 46%)
HSV	hsv(223, 75%, 73%)
CMYK	cmyk(74.7%, 53.2%, 0%, 27.1%)
CIE-LAB	lab(39.52, 21.18, -56.33)
CIE-LCH	lch(39.52, 60.18, 290.60°)
OKLab	oklab(48.62% -0.0156 -0.1622)
OKLCH	oklch(48.62% 0.163 264.5)
XYZ	xyz(13.4403, 10.9644, 47.8529)
Luminance	0.1097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57BA #BA922F

analogous

#2F9CBA #2F57BA #4C2FBA

triadic

#2F57BA #BA2F57 #57BA2F

tetradic

#2F57BA #BA2F9C #BA922F #2FBA4C

square

#2F57BA #BA2F9C #BA922F #2FBA4C

split-complementary

#2F57BA #BA4C2F #9CBA2F

monochromatic

#162958 #234089 #2F57BA #5378D3 #849EE0

Accessibility & contrast

On white

6.58

#2F57BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#2F57BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57BA

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57BA	#FFFFFF	#000000	##FFFFFF
##2F57BA	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D64BD

Deuteranopia (green-blind)

#0057B8

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2f57ba;
/* rgb */ color: rgb(47, 87, 186);
/* oklch */ color: oklch(48.6% 0.163 264.5);

Tailwind

colors: {
  custom: {
    50: '#7b85cf',
    500: '#2f57ba',
    950: '#000000',
  },
}

SCSS

$custom: #2f57ba;
$custom-light: #7b85cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57ba",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 186
  },
  "hsl": {
    "h": 222.734,
    "s": 59.657,
    "l": 45.686
  },
  "oklch": {
    "l": 0.48616,
    "c": 0.16296,
    "h": 264.5
  },
  "luminance": 0.10966
}

Semantic roles & 50–950 ramp

primary

#2F57BA

secondary

#C9B37C

accent

#B545E3

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2F57BA

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

Preview Lab → · Contrast checker → · Palette generator →