#2751BB#2751BB

#2751BB is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.2% C 0.174 H 264.3°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#2751BB
RGB	rgb(39, 81, 187)
HSL	hsl(223, 65%, 44%)
HSV	hsv(223, 79%, 73%)
CMYK	cmyk(79.1%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(37.67, 24.60, -59.94)
CIE-LCH	lch(37.67, 64.79, 292.31°)
OKLab	oklab(47.16% -0.0172 -0.1731)
OKLCH	oklch(47.16% 0.174 264.3)
XYZ	xyz(12.7456, 9.9026, 48.2437)
Luminance	0.0990 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2751BB #BB9127

analogous

#279BBB #2751BB #4727BB

triadic

#2751BB #BB2751 #51BB27

tetradic

#2751BB #BB279B #BB9127 #27BB47

square

#2751BB #BB279B #BB9127 #27BB47

split-complementary

#2751BB #BB4727 #9BBB27

monochromatic

#122556 #1C3B88 #2751BB #4770D9 #7997E3

Accessibility & contrast

On white

7.05

#2751BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#2751BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2751BB

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2751BB	#FFFFFF	#000000	##FFFFFF
##2751BB	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BF

Deuteranopia (green-blind)

#0052B9

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2751bb;
/* rgb */ color: rgb(39, 81, 187);
/* oklch */ color: oklch(47.2% 0.174 264.3);

Tailwind

colors: {
  custom: {
    50: '#7981d0',
    500: '#2751bb',
    950: '#000000',
  },
}

SCSS

$custom: #2751bb;
$custom-light: #7981d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2751bb",
  "rgb": {
    "r": 39,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 222.973,
    "s": 65.487,
    "l": 44.314
  },
  "oklch": {
    "l": 0.47155,
    "c": 0.17392,
    "h": 264.3
  },
  "luminance": 0.09904
}

Semantic roles & 50–950 ramp

primary

#2751BB

secondary

#CBB273

accent

#B83FE8

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2751BB

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

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