#2783B0#2783B0

#2783B0 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 57.8% C 0.108 H 234.9°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#2783B0
RGB	rgb(39, 131, 176)
HSL	hsl(200, 64%, 42%)
HSV	hsv(200, 78%, 69%)
CMYK	cmyk(77.8%, 25.6%, 0%, 31%)
CIE-LAB	lab(51.61, -10.88, -31.30)
CIE-LCH	lch(51.61, 33.14, 250.84°)
OKLab	oklab(57.79% -0.0621 -0.0883)
OKLCH	oklch(57.79% 0.108 234.9)
XYZ	xyz(16.7863, 19.7965, 44.0023)
Luminance	0.1980 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2783B0 #B05427

analogous

#27B099 #2783B0 #273FB0

triadic

#2783B0 #B02783 #83B027

tetradic

#2783B0 #9927B0 #B05427 #3FB027

square

#2783B0 #9927B0 #B05427 #3FB027

split-complementary

#2783B0 #B0273F #B09927

monochromatic

#11384C #1C5E7E #2783B0 #40A4D5 #72BCE0

Accessibility & contrast

On white

4.23

#2783B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#2783B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2783B0

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2783B0	#FFFFFF	#000000	##000000
##2783B0	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D82B2

Deuteranopia (green-blind)

#5B75AF

Tritanopia (blue-blind)

#008F92

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #2783b0;
/* rgb */ color: rgb(39, 131, 176);
/* oklch */ color: oklch(57.8% 0.108 234.9);

Tailwind

colors: {
  custom: {
    50: '#76a7c7',
    500: '#2783b0',
    950: '#000000',
  },
}

SCSS

$custom: #2783b0;
$custom-light: #76a7c7;
$custom-dark: #000000;

JSON

{
  "hex": "#2783b0",
  "rgb": {
    "r": 39,
    "g": 131,
    "b": 176
  },
  "hsl": {
    "h": 199.708,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.57785,
    "c": 0.10794,
    "h": 234.9
  },
  "luminance": 0.19799
}

Semantic roles & 50–950 ramp

primary

#2783B0

secondary

#C78A6C

accent

#7741E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #2783B0

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

Preview Lab → · Contrast checker → · Palette generator →