#2978B2#2978B2

#2978B2 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.3% C 0.118 H 244.8°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#2978B2
RGB	rgb(41, 120, 178)
HSL	hsl(205, 63%, 43%)
HSV	hsv(205, 77%, 70%)
CMYK	cmyk(77%, 32.6%, 0%, 30.2%)
CIE-LAB	lab(48.41, -3.49, -37.47)
CIE-LCH	lch(48.41, 37.64, 264.68°)
OKLab	oklab(55.29% -0.05 -0.1063)
OKLCH	oklch(55.29% 0.118 244.8)
XYZ	xyz(15.6637, 17.1169, 44.5892)
Luminance	0.1712 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2978B2 #B26329

analogous

#29B2A7 #2978B2 #2934B2

triadic

#2978B2 #B22978 #78B229

tetradic

#2978B2 #A729B2 #B26329 #34B229

square

#2978B2 #A729B2 #B26329 #34B229

split-complementary

#2978B2 #B22934 #B2A729

monochromatic

#12354F #1E5680 #2978B2 #4497D4 #76B3DF

Accessibility & contrast

On white

4.75

#2978B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#2978B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2978B2

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2978B2	#FFFFFF	#000000	##FFFFFF
##2978B2	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7AB4

Deuteranopia (green-blind)

#4A6DB1

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2978b2;
/* rgb */ color: rgb(41, 120, 178);
/* oklch */ color: oklch(55.3% 0.118 244.8);

Tailwind

colors: {
  custom: {
    50: '#779ec9',
    500: '#2978b2',
    950: '#000000',
  },
}

SCSS

$custom: #2978b2;
$custom-light: #779ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#2978b2",
  "rgb": {
    "r": 41,
    "g": 120,
    "b": 178
  },
  "hsl": {
    "h": 205.401,
    "s": 62.557,
    "l": 42.941
  },
  "oklch": {
    "l": 0.55293,
    "c": 0.11752,
    "h": 244.8
  },
  "luminance": 0.17119
}

Semantic roles & 50–950 ramp

primary

#2978B2

secondary

#C79570

accent

#8742E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2978B2

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

Preview Lab → · Contrast checker → · Palette generator →