#2B78B8#2B78B8

#2B78B8 is a mid, vivid cyan. Relative luminance 0.174; OKLCH L 55.7% C 0.124 H 247.6°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#2B78B8
RGB	rgb(43, 120, 184)
HSL	hsl(207, 62%, 45%)
HSV	hsv(207, 77%, 72%)
CMYK	cmyk(76.6%, 34.8%, 0%, 27.8%)
CIE-LAB	lab(48.77, -1.03, -40.37)
CIE-LCH	lch(48.77, 40.39, 268.54°)
OKLab	oklab(55.69% -0.0472 -0.1148)
OKLCH	oklch(55.69% 0.124 247.6)
XYZ	xyz(16.3612, 17.4053, 47.8354)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B78B8 #B86B2B

analogous

#2BB8B2 #2B78B8 #2B31B8

triadic

#2B78B8 #B82B78 #78B82B

tetradic

#2B78B8 #B22BB8 #B86B2B #31B82B

square

#2B78B8 #B22BB8 #B86B2B #31B82B

split-complementary

#2B78B8 #B82B31 #B8B22B

monochromatic

#143755 #1F5886 #2B78B8 #4B96D5 #7DB3E1

Accessibility & contrast

On white

4.69

#2B78B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#2B78B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B78B8

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B78B8	#FFFFFF	#000000	##FFFFFF
##2B78B8	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7BBB

Deuteranopia (green-blind)

#466EB7

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #2b78b8;
/* rgb */ color: rgb(43, 120, 184);
/* oklch */ color: oklch(55.7% 0.124 247.6);

Tailwind

colors: {
  custom: {
    50: '#799ecd',
    500: '#2b78b8',
    950: '#000000',
  },
}

SCSS

$custom: #2b78b8;
$custom-light: #799ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#2b78b8",
  "rgb": {
    "r": 43,
    "g": 120,
    "b": 184
  },
  "hsl": {
    "h": 207.234,
    "s": 62.115,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55692,
    "c": 0.12412,
    "h": 247.6
  },
  "luminance": 0.17407
}

Semantic roles & 50–950 ramp

primary

#2B78B8

secondary

#C99C76

accent

#8C43E5

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2B78B8

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

Preview Lab → · Contrast checker → · Palette generator →