#2F57AF#2F57AF

#2F57AF is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.8% C 0.148 H 263.5°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#2F57AF
RGB	rgb(47, 87, 175)
HSL	hsl(221, 58%, 44%)
HSV	hsv(221, 73%, 69%)
CMYK	cmyk(73.1%, 50.3%, 0%, 31.4%)
CIE-LAB	lab(38.75, 17.02, -51.11)
CIE-LCH	lch(38.75, 53.87, 288.42°)
OKLab	oklab(47.79% -0.0168 -0.1468)
OKLCH	oklch(47.79% 0.148 263.5)
XYZ	xyz(12.3156, 10.5146, 41.9296)
Luminance	0.1052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57AF #AF872F

analogous

#2F97AF #2F57AF #472FAF

triadic

#2F57AF #AF2F57 #57AF2F

tetradic

#2F57AF #AF2F97 #AF872F #2FAF47

square

#2F57AF #AF2F97 #AF872F #2FAF47

split-complementary

#2F57AF #AF472F #97AF2F

monochromatic

#15274F #223F7F #2F57AF #4C75CF #7C9ADC

Accessibility & contrast

On white

6.77

#2F57AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#2F57AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57AF

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57AF	#FFFFFF	#000000	##FFFFFF
##2F57AF	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2361B2

Deuteranopia (green-blind)

#0056AD

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2f57af;
/* rgb */ color: rgb(47, 87, 175);
/* oklch */ color: oklch(47.8% 0.148 263.5);

Tailwind

colors: {
  custom: {
    50: '#7985c7',
    500: '#2f57af',
    950: '#000000',
  },
}

SCSS

$custom: #2f57af;
$custom-light: #7985c7;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57af",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 175
  },
  "hsl": {
    "h": 221.25,
    "s": 57.658,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47786,
    "c": 0.1478,
    "h": 263.5
  },
  "luminance": 0.10516
}

Semantic roles & 50–950 ramp

primary

#2F57AF

secondary

#C4AC75

accent

#B147E1

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2F57AF

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

Preview Lab → · Contrast checker → · Palette generator →