#2751B3#2751B3

#2751B3 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.5% C 0.163 H 263.7°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#2751B3
RGB	rgb(39, 81, 179)
HSL	hsl(222, 64%, 43%)
HSV	hsv(222, 78%, 70%)
CMYK	cmyk(78.2%, 54.7%, 0%, 29.8%)
CIE-LAB	lab(37.06, 21.52, -56.22)
CIE-LCH	lch(37.06, 60.20, 290.95°)
OKLab	oklab(46.51% -0.0178 -0.1621)
OKLCH	oklch(46.51% 0.163 263.7)
XYZ	xyz(11.9129, 9.5695, 43.8583)
Luminance	0.0957 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2751B3 #B38927

analogous

#2797B3 #2751B3 #4327B3

triadic

#2751B3 #B32751 #51B327

tetradic

#2751B3 #B32797 #B38927 #27B343

square

#2751B3 #B32797 #B38927 #27B343

split-complementary

#2751B3 #B34327 #97B327

monochromatic

#11244E #1C3A81 #2751B3 #416ED6 #7494E1

Accessibility & contrast

On white

7.21

#2751B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#2751B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2751B3

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2751B3	#FFFFFF	#000000	##FFFFFF
##2751B3	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB6

Deuteranopia (green-blind)

#0051B1

Tritanopia (blue-blind)

#00697A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2751b3;
/* rgb */ color: rgb(39, 81, 179);
/* oklch */ color: oklch(46.5% 0.163 263.7);

Tailwind

colors: {
  custom: {
    50: '#7781ca',
    500: '#2751b3',
    950: '#000000',
  },
}

SCSS

$custom: #2751b3;
$custom-light: #7781ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2751b3",
  "rgb": {
    "r": 39,
    "g": 81,
    "b": 179
  },
  "hsl": {
    "h": 222,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.46505,
    "c": 0.16311,
    "h": 263.7
  },
  "luminance": 0.09571
}

Semantic roles & 50–950 ramp

primary

#2751B3

secondary

#C8AD6E

accent

#B541E7

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2751B3

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

Preview Lab → · Contrast checker → · Palette generator →