#2F57BF#2F57BF

#2F57BF is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.0% C 0.170 H 264.9°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#2F57BF
RGB	rgb(47, 87, 191)
HSL	hsl(223, 61%, 47%)
HSV	hsv(223, 75%, 75%)
CMYK	cmyk(75.4%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(39.88, 23.06, -58.67)
CIE-LCH	lch(39.88, 63.04, 291.46°)
OKLab	oklab(49.01% -0.0152 -0.1691)
OKLCH	oklch(49.01% 0.17 264.9)
XYZ	xyz(13.9811, 11.1808, 50.7014)
Luminance	0.1118 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57BF #BF972F

analogous

#2F9FBF #2F57BF #4F2FBF

triadic

#2F57BF #BF2F57 #57BF2F

tetradic

#2F57BF #BF2F9F #BF972F #2FBF4F

square

#2F57BF #BF2F9F #BF972F #2FBF4F

split-complementary

#2F57BF #BF4F2F #9FBF2F

monochromatic

#172A5D #23418E #2F57BF #5679D5 #87A0E1

Accessibility & contrast

On white

6.49

#2F57BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#2F57BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57BF

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57BF	#FFFFFF	#000000	##FFFFFF
##2F57BF	1.00	6.49	3.24	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C3

Deuteranopia (green-blind)

#0058BD

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2f57bf;
/* rgb */ color: rgb(47, 87, 191);
/* oklch */ color: oklch(49.0% 0.170 264.9);

Tailwind

colors: {
  custom: {
    50: '#7c85d3',
    500: '#2f57bf',
    950: '#000000',
  },
}

SCSS

$custom: #2f57bf;
$custom-light: #7c85d3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57bf",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 223.333,
    "s": 60.504,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49006,
    "c": 0.16976,
    "h": 264.9
  },
  "luminance": 0.11182
}

Semantic roles & 50–950 ramp

primary

#2F57BF

secondary

#CBB67F

accent

#B744E4

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #2F57BF

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

Preview Lab → · Contrast checker → · Palette generator →