#2978B6#2978B6

#2978B6 is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.5% C 0.122 H 246.5°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#2978B6
RGB	rgb(41, 120, 182)
HSL	hsl(206, 63%, 44%)
HSV	hsv(206, 77%, 71%)
CMYK	cmyk(77.5%, 34.1%, 0%, 28.6%)
CIE-LAB	lab(48.61, -2.01, -39.47)
CIE-LCH	lch(48.61, 39.52, 267.09°)
OKLab	oklab(55.52% -0.0488 -0.1122)
OKLCH	oklch(55.52% 0.122 246.5)
XYZ	xyz(16.0712, 17.2799, 46.7352)
Luminance	0.1728 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2978B6 #B66729

analogous

#29B6AD #2978B6 #2931B6

triadic

#2978B6 #B62978 #78B629

tetradic

#2978B6 #AD29B6 #B66729 #31B629

square

#2978B6 #AD29B6 #B66729 #31B629

split-complementary

#2978B6 #B62931 #B6AD29

monochromatic

#123652 #1E5784 #2978B6 #4797D5 #79B3E1

Accessibility & contrast

On white

4.71

#2978B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#2978B6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2978B6

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2978B6	#FFFFFF	#000000	##FFFFFF
##2978B6	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7BB9

Deuteranopia (green-blind)

#476EB5

Tritanopia (blue-blind)

#00878E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2978b6;
/* rgb */ color: rgb(41, 120, 182);
/* oklch */ color: oklch(55.5% 0.122 246.5);

Tailwind

colors: {
  custom: {
    50: '#779ecc',
    500: '#2978b6',
    950: '#000000',
  },
}

SCSS

$custom: #2978b6;
$custom-light: #779ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#2978b6",
  "rgb": {
    "r": 41,
    "g": 120,
    "b": 182
  },
  "hsl": {
    "h": 206.383,
    "s": 63.229,
    "l": 43.725
  },
  "oklch": {
    "l": 0.5552,
    "c": 0.12233,
    "h": 246.5
  },
  "luminance": 0.17282
}

Semantic roles & 50–950 ramp

primary

#2978B6

secondary

#C99872

accent

#8A42E6

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2978B6

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

Preview Lab → · Contrast checker → · Palette generator →