#2F57BE#2F57BE

#2F57BE is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.9% C 0.168 H 264.8°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#2F57BE
RGB	rgb(47, 87, 190)
HSL	hsl(223, 60%, 46%)
HSV	hsv(223, 75%, 75%)
CMYK	cmyk(75.3%, 54.2%, 0%, 25.5%)
CIE-LAB	lab(39.81, 22.69, -58.20)
CIE-LCH	lch(39.81, 62.47, 291.30°)
OKLab	oklab(48.93% -0.0153 -0.1677)
OKLCH	oklch(48.93% 0.168 264.8)
XYZ	xyz(13.8715, 11.1369, 50.1238)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57BE #BE962F

analogous

#2F9FBE #2F57BE #4F2FBE

triadic

#2F57BE #BE2F57 #57BE2F

tetradic

#2F57BE #BE2F9F #BE962F #2FBE4F

square

#2F57BE #BE2F9F #BE962F #2FBE4F

split-complementary

#2F57BE #BE4F2F #9FBE2F

monochromatic

#172A5C #23418D #2F57BE #5579D5 #86A0E1

Accessibility & contrast

On white

6.51

#2F57BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#2F57BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57BE

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57BE	#FFFFFF	#000000	##FFFFFF
##2F57BE	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C2

Deuteranopia (green-blind)

#0058BC

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2f57be;
/* rgb */ color: rgb(47, 87, 190);
/* oklch */ color: oklch(48.9% 0.168 264.8);

Tailwind

colors: {
  custom: {
    50: '#7c85d2',
    500: '#2f57be',
    950: '#000000',
  },
}

SCSS

$custom: #2f57be;
$custom-light: #7c85d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57be",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 190
  },
  "hsl": {
    "h": 223.217,
    "s": 60.338,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48927,
    "c": 0.16841,
    "h": 264.8
  },
  "luminance": 0.11138
}

Semantic roles & 50–950 ramp

primary

#2F57BE

secondary

#CBB57E

accent

#B744E3

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #2F57BE

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

Preview Lab → · Contrast checker → · Palette generator →