#2783B1#2783B1

#2783B1 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 57.8% C 0.109 H 235.5°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#2783B1
RGB	rgb(39, 131, 177)
HSL	hsl(200, 64%, 42%)
HSV	hsv(200, 78%, 69%)
CMYK	cmyk(78%, 26%, 0%, 30.6%)
CIE-LAB	lab(51.65, -10.52, -31.81)
CIE-LCH	lch(51.65, 33.50, 251.70°)
OKLab	oklab(57.84% -0.0617 -0.0898)
OKLCH	oklch(57.84% 0.109 235.5)
XYZ	xyz(16.8856, 19.8362, 44.5253)
Luminance	0.1984 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2783B1 #B15527

analogous

#27B19A #2783B1 #273EB1

triadic

#2783B1 #B12783 #83B127

tetradic

#2783B1 #9A27B1 #B15527 #3EB127

square

#2783B1 #9A27B1 #B15527 #3EB127

split-complementary

#2783B1 #B1273E #B19A27

monochromatic

#11394D #1C5E7F #2783B1 #40A3D5 #72BBE0

Accessibility & contrast

On white

4.23

#2783B1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#2783B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2783B1

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2783B1	#FFFFFF	#000000	##000000
##2783B1	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D82B3

Deuteranopia (green-blind)

#5A75B0

Tritanopia (blue-blind)

#008F93

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #2783b1;
/* rgb */ color: rgb(39, 131, 177);
/* oklch */ color: oklch(57.8% 0.109 235.5);

Tailwind

colors: {
  custom: {
    50: '#76a7c8',
    500: '#2783b1',
    950: '#000000',
  },
}

SCSS

$custom: #2783b1;
$custom-light: #76a7c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2783b1",
  "rgb": {
    "r": 39,
    "g": 131,
    "b": 177
  },
  "hsl": {
    "h": 200,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.57836,
    "c": 0.10895,
    "h": 235.5
  },
  "luminance": 0.19838
}

Semantic roles & 50–950 ramp

primary

#2783B1

secondary

#C78B6D

accent

#7841E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #2783B1

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

Preview Lab → · Contrast checker → · Palette generator →