#2788B2#2788B2

#2788B2 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.1% C 0.107 H 231.8°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#2788B2
RGB	rgb(39, 136, 178)
HSL	hsl(198, 64%, 43%)
HSV	hsv(198, 78%, 70%)
CMYK	cmyk(78.1%, 23.6%, 0%, 30.2%)
CIE-LAB	lab(53.22, -12.99, -29.93)
CIE-LCH	lch(53.22, 32.63, 246.53°)
OKLab	oklab(59.1% -0.0662 -0.0843)
OKLCH	oklch(59.1% 0.107 231.8)
XYZ	xyz(17.6735, 21.2519, 45.2814)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2788B2 #B25127

analogous

#27B296 #2788B2 #2743B2

triadic

#2788B2 #B22788 #88B227

tetradic

#2788B2 #9627B2 #B25127 #43B227

square

#2788B2 #9627B2 #B25127 #43B227

split-complementary

#2788B2 #B22743 #B29627

monochromatic

#113B4E #1C6280 #2788B2 #41A8D5 #73BFE0

Accessibility & contrast

On white

4.00

#2788B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#2788B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2788B2

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2788B2	#FFFFFF	#000000	##000000
##2788B2	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7386B4

Deuteranopia (green-blind)

#6079B1

Tritanopia (blue-blind)

#009396

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #2788b2;
/* rgb */ color: rgb(39, 136, 178);
/* oklch */ color: oklch(59.1% 0.107 231.8);

Tailwind

colors: {
  custom: {
    50: '#77aac9',
    500: '#2788b2',
    950: '#000000',
  },
}

SCSS

$custom: #2788b2;
$custom-light: #77aac9;
$custom-dark: #000000;

JSON

{
  "hex": "#2788b2",
  "rgb": {
    "r": 39,
    "g": 136,
    "b": 178
  },
  "hsl": {
    "h": 198.129,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.59104,
    "c": 0.10718,
    "h": 231.8
  },
  "luminance": 0.21254
}

Semantic roles & 50–950 ramp

primary

#2788B2

secondary

#C8896D

accent

#7341E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2788B2

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

Preview Lab → · Contrast checker → · Palette generator →