#2F57AC#2F57AC

#2F57AC is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.6% C 0.144 H 263.1°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#2F57AC
RGB	rgb(47, 87, 172)
HSL	hsl(221, 57%, 43%)
HSV	hsv(221, 73%, 67%)
CMYK	cmyk(72.7%, 49.4%, 0%, 32.5%)
CIE-LAB	lab(38.55, 15.88, -49.66)
CIE-LCH	lch(38.55, 52.14, 287.74°)
OKLab	oklab(47.57% -0.0173 -0.1426)
OKLCH	oklch(47.57% 0.144 263.1)
XYZ	xyz(12.0242, 10.3980, 40.3950)
Luminance	0.1040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57AC #AC842F

analogous

#2F95AC #2F57AC #452FAC

triadic

#2F57AC #AC2F57 #57AC2F

tetradic

#2F57AC #AC2F95 #AC842F #2FAC45

square

#2F57AC #AC2F95 #AC842F #2FAC45

split-complementary

#2F57AC #AC452F #95AC2F

monochromatic

#15264C #223F7C #2F57AC #4B74CE #7B99DB

Accessibility & contrast

On white

6.82

#2F57AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#2F57AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57AC

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57AC	#FFFFFF	#000000	##FFFFFF
##2F57AC	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2761AF

Deuteranopia (green-blind)

#0055AA

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2f57ac;
/* rgb */ color: rgb(47, 87, 172);
/* oklch */ color: oklch(47.6% 0.144 263.1);

Tailwind

colors: {
  custom: {
    50: '#7885c5',
    500: '#2f57ac',
    950: '#000000',
  },
}

SCSS

$custom: #2f57ac;
$custom-light: #7885c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57ac",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 172
  },
  "hsl": {
    "h": 220.8,
    "s": 57.078,
    "l": 42.941
  },
  "oklch": {
    "l": 0.47566,
    "c": 0.14362,
    "h": 263.1
  },
  "luminance": 0.10399
}

Semantic roles & 50–950 ramp

primary

#2F57AC

secondary

#C3AA74

accent

#AF47E0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2F57AC

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

Preview Lab → · Contrast checker → · Palette generator →