#2757BC#2757BC

#2757BC is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.5% C 0.168 H 262.7°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#2757BC
RGB	rgb(39, 87, 188)
HSL	hsl(221, 66%, 45%)
HSV	hsv(221, 79%, 74%)
CMYK	cmyk(79.3%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(39.37, 21.03, -57.76)
CIE-LCH	lch(39.37, 61.47, 290.01°)
OKLab	oklab(48.47% -0.0213 -0.1665)
OKLCH	oklch(48.47% 0.168 262.7)
XYZ	xyz(13.3187, 10.8770, 48.9647)
Luminance	0.1088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2757BC #BC8C27

analogous

#27A2BC #2757BC #4127BC

triadic

#2757BC #BC2757 #57BC27

tetradic

#2757BC #BC27A2 #BC8C27 #27BC41

square

#2757BC #BC27A2 #BC8C27 #27BC41

split-complementary

#2757BC #BC4127 #A2BC27

monochromatic

#122857 #1C4089 #2757BC #4776D9 #7A9CE3

Accessibility & contrast

On white

6.61

#2757BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#2757BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2757BC

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2757BC	#FFFFFF	#000000	##FFFFFF
##2757BC	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0164C0

Deuteranopia (green-blind)

#0056BA

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2757bc;
/* rgb */ color: rgb(39, 87, 188);
/* oklch */ color: oklch(48.5% 0.168 262.7);

Tailwind

colors: {
  custom: {
    50: '#7985d1',
    500: '#2757bc',
    950: '#000000',
  },
}

SCSS

$custom: #2757bc;
$custom-light: #7985d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2757bc",
  "rgb": {
    "r": 39,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 220.671,
    "s": 65.639,
    "l": 44.51
  },
  "oklch": {
    "l": 0.48468,
    "c": 0.16789,
    "h": 262.7
  },
  "luminance": 0.10879
}

Semantic roles & 50–950 ramp

primary

#2757BC

secondary

#CBAF73

accent

#B23FE9

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2757BC

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

Preview Lab → · Contrast checker → · Palette generator →