#2757BB#2757BB

#2757BB is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.4% C 0.167 H 262.6°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#2757BB
RGB	rgb(39, 87, 187)
HSL	hsl(221, 65%, 44%)
HSV	hsv(221, 79%, 73%)
CMYK	cmyk(79.1%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(39.30, 20.64, -57.29)
CIE-LCH	lch(39.30, 60.90, 289.82°)
OKLab	oklab(48.39% -0.0214 -0.1652)
OKLCH	oklch(48.39% 0.167 262.6)
XYZ	xyz(13.2113, 10.8340, 48.3990)
Luminance	0.1084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2757BB #BB8B27

analogous

#27A1BB #2757BB #4127BB

triadic

#2757BB #BB2757 #57BB27

tetradic

#2757BB #BB27A1 #BB8B27 #27BB41

square

#2757BB #BB27A1 #BB8B27 #27BB41

split-complementary

#2757BB #BB4127 #A1BB27

monochromatic

#122856 #1C3F88 #2757BB #4776D9 #799CE3

Accessibility & contrast

On white

6.63

#2757BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#2757BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2757BB

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2757BB	#FFFFFF	#000000	##FFFFFF
##2757BB	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0564BF

Deuteranopia (green-blind)

#0056B9

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2757bb;
/* rgb */ color: rgb(39, 87, 187);
/* oklch */ color: oklch(48.4% 0.167 262.6);

Tailwind

colors: {
  custom: {
    50: '#7985d0',
    500: '#2757bb',
    950: '#000000',
  },
}

SCSS

$custom: #2757bb;
$custom-light: #7985d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2757bb",
  "rgb": {
    "r": 39,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 220.541,
    "s": 65.487,
    "l": 44.314
  },
  "oklch": {
    "l": 0.4839,
    "c": 0.16654,
    "h": 262.6
  },
  "luminance": 0.10836
}

Semantic roles & 50–950 ramp

primary

#2757BB

secondary

#CBAE73

accent

#B23FE8

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2757BB

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

Preview Lab → · Contrast checker → · Palette generator →