#2B78B2#2B78B2

#2B78B2 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.4% C 0.117 H 245.2°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#2B78B2
RGB	rgb(43, 120, 178)
HSL	hsl(206, 61%, 43%)
HSV	hsv(206, 76%, 70%)
CMYK	cmyk(75.8%, 32.6%, 0%, 30.2%)
CIE-LAB	lab(48.46, -3.24, -37.39)
CIE-LCH	lch(48.46, 37.53, 265.05°)
OKLab	oklab(55.35% -0.0489 -0.1061)
OKLCH	oklch(55.35% 0.117 245.2)
XYZ	xyz(15.7455, 17.1591, 44.5930)
Luminance	0.1716 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B78B2 #B2652B

analogous

#2BB2A8 #2B78B2 #2B34B2

triadic

#2B78B2 #B22B78 #78B22B

tetradic

#2B78B2 #A82BB2 #B2652B #34B22B

square

#2B78B2 #A82BB2 #B2652B #34B22B

split-complementary

#2B78B2 #B22B34 #B2A82B

monochromatic

#13364F #1F5781 #2B78B2 #4897D3 #79B3DF

Accessibility & contrast

On white

4.74

#2B78B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#2B78B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B78B2

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B78B2	#FFFFFF	#000000	##FFFFFF
##2B78B2	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)

#5D7AB4

Deuteranopia (green-blind)

#4A6DB1

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2b78b2;
/* rgb */ color: rgb(43, 120, 178);
/* oklch */ color: oklch(55.4% 0.117 245.2);

Tailwind

colors: {
  custom: {
    50: '#779ec9',
    500: '#2b78b2',
    950: '#000000',
  },
}

SCSS

$custom: #2b78b2;
$custom-light: #779ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b78b2",
  "rgb": {
    "r": 43,
    "g": 120,
    "b": 178
  },
  "hsl": {
    "h": 205.778,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.5535,
    "c": 0.11682,
    "h": 245.2
  },
  "luminance": 0.17161
}

Semantic roles & 50–950 ramp

primary

#2B78B2

secondary

#C79672

accent

#8944E4

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2B78B2

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

Preview Lab → · Contrast checker → · Palette generator →