#2B78B7#2B78B7

#2B78B7 is a mid, vivid cyan. Relative luminance 0.174; OKLCH L 55.6% C 0.123 H 247.3°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#2B78B7
RGB	rgb(43, 120, 183)
HSL	hsl(207, 62%, 44%)
HSV	hsv(207, 77%, 72%)
CMYK	cmyk(76.5%, 34.4%, 0%, 28.2%)
CIE-LAB	lab(48.71, -1.40, -39.88)
CIE-LCH	lch(48.71, 39.90, 267.99°)
OKLab	oklab(55.63% -0.0475 -0.1133)
OKLCH	oklch(55.63% 0.123 247.3)
XYZ	xyz(16.2567, 17.3635, 47.2853)
Luminance	0.1736 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B78B7 #B76A2B

analogous

#2BB7B0 #2B78B7 #2B32B7

triadic

#2B78B7 #B72B78 #78B72B

tetradic

#2B78B7 #B02BB7 #B76A2B #32B72B

square

#2B78B7 #B02BB7 #B76A2B #32B72B

split-complementary

#2B78B7 #B72B32 #B7B02B

monochromatic

#143754 #1F5885 #2B78B7 #4B97D5 #7CB3E0

Accessibility & contrast

On white

4.69

#2B78B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#2B78B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B78B7

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B78B7	#FFFFFF	#000000	##FFFFFF
##2B78B7	1.00	4.69	4.47	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7BBA

Deuteranopia (green-blind)

#476EB6

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #2b78b7;
/* rgb */ color: rgb(43, 120, 183);
/* oklch */ color: oklch(55.6% 0.123 247.3);

Tailwind

colors: {
  custom: {
    50: '#789ecd',
    500: '#2b78b7',
    950: '#000000',
  },
}

SCSS

$custom: #2b78b7;
$custom-light: #789ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#2b78b7",
  "rgb": {
    "r": 43,
    "g": 120,
    "b": 183
  },
  "hsl": {
    "h": 207,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.55634,
    "c": 0.1229,
    "h": 247.3
  },
  "luminance": 0.17365
}

Semantic roles & 50–950 ramp

primary

#2B78B7

secondary

#C99B75

accent

#8C43E5

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2B78B7

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

Preview Lab → · Contrast checker → · Palette generator →