#2F57A6#2F57A6

#2F57A6 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.1% C 0.135 H 262.3°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#2F57A6
RGB	rgb(47, 87, 166)
HSL	hsl(220, 56%, 42%)
HSV	hsv(220, 72%, 65%)
CMYK	cmyk(71.7%, 47.6%, 0%, 34.9%)
CIE-LAB	lab(38.15, 13.61, -46.74)
CIE-LCH	lch(38.15, 48.68, 286.24°)
OKLab	oklab(47.14% -0.0181 -0.134)
OKLCH	oklch(47.14% 0.135 262.3)
XYZ	xyz(11.4610, 10.1727, 37.4285)
Luminance	0.1017 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57A6 #A67E2F

analogous

#2F93A6 #2F57A6 #432FA6

triadic

#2F57A6 #A62F57 #57A62F

tetradic

#2F57A6 #A62F93 #A67E2F #2FA643

square

#2F57A6 #A62F93 #A67E2F #2FA643

split-complementary

#2F57A6 #A6432F #93A62F

monochromatic

#142547 #213E76 #2F57A6 #4774CB #7798D8

Accessibility & contrast

On white

6.92

#2F57A6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#2F57A6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57A6

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57A6	#FFFFFF	#000000	##FFFFFF
##2F57A6	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D60A9

Deuteranopia (green-blind)

#1155A4

Tritanopia (blue-blind)

#006A76

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2f57a6;
/* rgb */ color: rgb(47, 87, 166);
/* oklch */ color: oklch(47.1% 0.135 262.3);

Tailwind

colors: {
  custom: {
    50: '#7785c1',
    500: '#2f57a6',
    950: '#000000',
  },
}

SCSS

$custom: #2f57a6;
$custom-light: #7785c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57a6",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 166
  },
  "hsl": {
    "h": 219.832,
    "s": 55.869,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47135,
    "c": 0.1352,
    "h": 262.3
  },
  "luminance": 0.10174
}

Semantic roles & 50–950 ramp

primary

#2F57A6

secondary

#C1A670

accent

#AD49DF

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #2F57A6

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

Preview Lab → · Contrast checker → · Palette generator →