#2978B3#2978B3

#2978B3 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.3% C 0.119 H 245.2°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#2978B3
RGB	rgb(41, 120, 179)
HSL	hsl(206, 63%, 43%)
HSV	hsv(206, 77%, 70%)
CMYK	cmyk(77.1%, 33%, 0%, 29.8%)
CIE-LAB	lab(48.46, -3.12, -37.97)
CIE-LCH	lch(48.46, 38.10, 265.31°)
OKLab	oklab(55.35% -0.0497 -0.1078)
OKLCH	oklch(55.35% 0.119 245.2)
XYZ	xyz(15.7645, 17.1572, 45.1199)
Luminance	0.1716 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2978B3 #B36429

analogous

#29B3A9 #2978B3 #2933B3

triadic

#2978B3 #B32978 #78B329

tetradic

#2978B3 #A929B3 #B36429 #33B329

square

#2978B3 #A929B3 #B36429 #33B329

split-complementary

#2978B3 #B32933 #B3A929

monochromatic

#12354F #1E5781 #2978B3 #4597D4 #77B3E0

Accessibility & contrast

On white

4.74

#2978B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#2978B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2978B3

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2978B3	#FFFFFF	#000000	##FFFFFF
##2978B3	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7AB6

Deuteranopia (green-blind)

#496DB2

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2978b3;
/* rgb */ color: rgb(41, 120, 179);
/* oklch */ color: oklch(55.3% 0.119 245.2);

Tailwind

colors: {
  custom: {
    50: '#779eca',
    500: '#2978b3',
    950: '#000000',
  },
}

SCSS

$custom: #2978b3;
$custom-light: #779eca;
$custom-dark: #000000;

JSON

{
  "hex": "#2978b3",
  "rgb": {
    "r": 41,
    "g": 120,
    "b": 179
  },
  "hsl": {
    "h": 205.652,
    "s": 62.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.55349,
    "c": 0.11871,
    "h": 245.2
  },
  "luminance": 0.17159
}

Semantic roles & 50–950 ramp

primary

#2978B3

secondary

#C79670

accent

#8842E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2978B3

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

Preview Lab → · Contrast checker → · Palette generator →