#2978B0#2978B0

#2978B0 is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 55.2% C 0.115 H 243.9°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#2978B0
RGB	rgb(41, 120, 176)
HSL	hsl(205, 62%, 43%)
HSV	hsv(205, 77%, 69%)
CMYK	cmyk(76.7%, 31.8%, 0%, 31%)
CIE-LAB	lab(48.31, -4.22, -36.47)
CIE-LCH	lch(48.31, 36.72, 263.40°)
OKLab	oklab(55.18% -0.0506 -0.1034)
OKLCH	oklch(55.18% 0.115 243.9)
XYZ	xyz(15.4644, 17.0371, 43.5393)
Luminance	0.1704 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2978B0 #B06129

analogous

#29B0A5 #2978B0 #2934B0

triadic

#2978B0 #B02978 #78B029

tetradic

#2978B0 #A529B0 #B06129 #34B029

square

#2978B0 #A529B0 #B06129 #34B029

split-complementary

#2978B0 #B02934 #B0A529

monochromatic

#12344D #1D567E #2978B0 #4397D3 #75B3DF

Accessibility & contrast

On white

4.76

#2978B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#2978B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2978B0

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2978B0	#FFFFFF	#000000	##FFFFFF
##2978B0	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7AB2

Deuteranopia (green-blind)

#4B6DAF

Tritanopia (blue-blind)

#00868C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2978b0;
/* rgb */ color: rgb(41, 120, 176);
/* oklch */ color: oklch(55.2% 0.115 243.9);

Tailwind

colors: {
  custom: {
    50: '#769ec8',
    500: '#2978b0',
    950: '#000000',
  },
}

SCSS

$custom: #2978b0;
$custom-light: #769ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2978b0",
  "rgb": {
    "r": 41,
    "g": 120,
    "b": 176
  },
  "hsl": {
    "h": 204.889,
    "s": 62.212,
    "l": 42.549
  },
  "oklch": {
    "l": 0.55181,
    "c": 0.11514,
    "h": 243.9
  },
  "luminance": 0.17039
}

Semantic roles & 50–950 ramp

primary

#2978B0

secondary

#C6936F

accent

#8643E5

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2978B0

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

Preview Lab → · Contrast checker → · Palette generator →