#2770B3#2770B3

#2770B3 is a mid, vivid cyan. Relative luminance 0.153; OKLCH L 53.4% C 0.127 H 250.0°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#2770B3
RGB	rgb(39, 112, 179)
HSL	hsl(209, 64%, 43%)
HSV	hsv(209, 78%, 70%)
CMYK	cmyk(78.2%, 37.4%, 0%, 29.8%)
CIE-LAB	lab(46.01, 1.52, -41.86)
CIE-LCH	lch(46.01, 41.89, 272.07°)
OKLab	oklab(53.41% -0.0434 -0.1193)
OKLCH	oklch(53.41% 0.127 250)
XYZ	xyz(14.7645, 15.2726, 44.8088)
Luminance	0.1527 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2770B3 #B36A27

analogous

#27B3B0 #2770B3 #272AB3

triadic

#2770B3 #B32770 #70B327

tetradic

#2770B3 #B027B3 #B36A27 #2AB327

square

#2770B3 #B027B3 #B36A27 #2AB327

split-complementary

#2770B3 #B3272A #B3B027

monochromatic

#11314E #1C5181 #2770B3 #418FD6 #74ADE1

Accessibility & contrast

On white

5.18

#2770B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#2770B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2770B3

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2770B3	#FFFFFF	#000000	##FFFFFF
##2770B3	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5174B6

Deuteranopia (green-blind)

#3B67B2

Tritanopia (blue-blind)

#008089

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #2770b3;
/* rgb */ color: rgb(39, 112, 179);
/* oklch */ color: oklch(53.4% 0.127 250.0);

Tailwind

colors: {
  custom: {
    50: '#7698ca',
    500: '#2770b3',
    950: '#000000',
  },
}

SCSS

$custom: #2770b3;
$custom-light: #7698ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2770b3",
  "rgb": {
    "r": 39,
    "g": 112,
    "b": 179
  },
  "hsl": {
    "h": 208.714,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.53406,
    "c": 0.12695,
    "h": 250
  },
  "luminance": 0.15274
}

Semantic roles & 50–950 ramp

primary

#2770B3

secondary

#C8996E

accent

#9041E7

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #2770B3

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

Preview Lab → · Contrast checker → · Palette generator →