#2789B0#2789B0

#2789B0 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.3% C 0.105 H 229.7°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#2789B0
RGB	rgb(39, 137, 176)
HSL	hsl(197, 64%, 42%)
HSV	hsv(197, 78%, 69%)
CMYK	cmyk(77.8%, 22.2%, 0%, 31%)
CIE-LAB	lab(53.44, -14.25, -28.44)
CIE-LCH	lch(53.44, 31.82, 243.38°)
OKLab	oklab(59.25% -0.0679 -0.08)
OKLCH	oklch(59.25% 0.105 229.7)
XYZ	xyz(17.6156, 21.4551, 44.2787)
Luminance	0.2146 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2789B0 #B04E27

analogous

#27B092 #2789B0 #2745B0

triadic

#2789B0 #B02789 #89B027

tetradic

#2789B0 #9227B0 #B04E27 #45B027

square

#2789B0 #9227B0 #B04E27 #45B027

split-complementary

#2789B0 #B02745 #B09227

monochromatic

#113B4C #1C627E #2789B0 #40AAD5 #72C0E0

Accessibility & contrast

On white

3.97

#2789B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#2789B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2789B0

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2789B0	#FFFFFF	#000000	##000000
##2789B0	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7587B2

Deuteranopia (green-blind)

#637AAF

Tritanopia (blue-blind)

#009496

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #2789b0;
/* rgb */ color: rgb(39, 137, 176);
/* oklch */ color: oklch(59.3% 0.105 229.7);

Tailwind

colors: {
  custom: {
    50: '#77abc7',
    500: '#2789b0',
    950: '#000000',
  },
}

SCSS

$custom: #2789b0;
$custom-light: #77abc7;
$custom-dark: #000000;

JSON

{
  "hex": "#2789b0",
  "rgb": {
    "r": 39,
    "g": 137,
    "b": 176
  },
  "hsl": {
    "h": 197.08,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.59251,
    "c": 0.10492,
    "h": 229.7
  },
  "luminance": 0.21457
}

Semantic roles & 50–950 ramp

primary

#2789B0

secondary

#C7866C

accent

#7041E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2789B0

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

Preview Lab → · Contrast checker → · Palette generator →