#2780B1#2780B1

#2780B1 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.1% C 0.111 H 237.9°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#2780B1
RGB	rgb(39, 128, 177)
HSL	hsl(201, 64%, 42%)
HSV	hsv(201, 78%, 69%)
CMYK	cmyk(78%, 27.7%, 0%, 30.6%)
CIE-LAB	lab(50.74, -8.80, -33.24)
CIE-LCH	lch(50.74, 34.38, 255.18°)
OKLab	oklab(57.11% -0.0589 -0.0939)
OKLCH	oklch(57.11% 0.111 237.9)
XYZ	xyz(16.4885, 19.0420, 44.3929)
Luminance	0.1904 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2780B1 #B15827

analogous

#27B19D #2780B1 #273BB1

triadic

#2780B1 #B12780 #80B127

tetradic

#2780B1 #9D27B1 #B15827 #3BB127

square

#2780B1 #9D27B1 #B15827 #3BB127

split-complementary

#2780B1 #B1273B #B19D27

monochromatic

#11374D #1C5C7F #2780B1 #40A0D5 #72B9E0

Accessibility & contrast

On white

4.37

#2780B1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#2780B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2780B1

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2780B1	#FFFFFF	#000000	##000000
##2780B1	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B3

Deuteranopia (green-blind)

#5673B0

Tritanopia (blue-blind)

#008C91

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #2780b1;
/* rgb */ color: rgb(39, 128, 177);
/* oklch */ color: oklch(57.1% 0.111 237.9);

Tailwind

colors: {
  custom: {
    50: '#76a4c8',
    500: '#2780b1',
    950: '#000000',
  },
}

SCSS

$custom: #2780b1;
$custom-light: #76a4c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2780b1",
  "rgb": {
    "r": 39,
    "g": 128,
    "b": 177
  },
  "hsl": {
    "h": 201.304,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.57108,
    "c": 0.11087,
    "h": 237.9
  },
  "luminance": 0.19044
}

Semantic roles & 50–950 ramp

primary

#2780B1

secondary

#C78D6D

accent

#7C41E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #2780B1

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

Preview Lab → · Contrast checker → · Palette generator →