#2978AB#2978AB

#2978AB is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.9% C 0.109 H 241.5°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#2978AB
RGB	rgb(41, 120, 171)
HSL	hsl(204, 61%, 42%)
HSV	hsv(204, 76%, 67%)
CMYK	cmyk(76%, 29.8%, 0%, 32.9%)
CIE-LAB	lab(48.06, -6.05, -33.95)
CIE-LCH	lch(48.06, 34.49, 259.89°)
OKLab	oklab(54.91% -0.0522 -0.0961)
OKLCH	oklch(54.91% 0.109 241.5)
XYZ	xyz(14.9787, 16.8429, 40.9817)
Luminance	0.1684 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2978AB #AB5C29

analogous

#29AB9D #2978AB #2937AB

triadic

#2978AB #AB2978 #78AB29

tetradic

#2978AB #9D29AB #AB5C29 #37AB29

square

#2978AB #9D29AB #AB5C29 #37AB29

split-complementary

#2978AB #AB2937 #AB9D29

monochromatic

#113348 #1D557A #2978AB #4098D1 #71B3DD

Accessibility & contrast

On white

4.81

#2978AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#2978AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2978AB

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2978AB	#FFFFFF	#000000	##FFFFFF
##2978AB	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6079AD

Deuteranopia (green-blind)

#4E6DAA

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2978ab;
/* rgb */ color: rgb(41, 120, 171);
/* oklch */ color: oklch(54.9% 0.109 241.5);

Tailwind

colors: {
  custom: {
    50: '#759ec4',
    500: '#2978ab',
    950: '#000000',
  },
}

SCSS

$custom: #2978ab;
$custom-light: #759ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#2978ab",
  "rgb": {
    "r": 41,
    "g": 120,
    "b": 171
  },
  "hsl": {
    "h": 203.538,
    "s": 61.321,
    "l": 41.569
  },
  "oklch": {
    "l": 0.54907,
    "c": 0.10933,
    "h": 241.5
  },
  "luminance": 0.16845
}

Semantic roles & 50–950 ramp

primary

#2978AB

secondary

#C48E6C

accent

#8343E4

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #2978AB

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

Preview Lab → · Contrast checker → · Palette generator →