#2789B3#2789B3

#2789B3 is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.4% C 0.108 H 231.6°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#2789B3
RGB	rgb(39, 137, 179)
HSL	hsl(198, 64%, 43%)
HSV	hsv(198, 78%, 70%)
CMYK	cmyk(78.2%, 23.5%, 0%, 29.8%)
CIE-LAB	lab(53.57, -13.20, -29.96)
CIE-LCH	lch(53.57, 32.74, 246.22°)
OKLab	oklab(59.4% -0.0668 -0.0844)
OKLCH	oklch(59.4% 0.108 231.6)
XYZ	xyz(17.9157, 21.5752, 45.8593)
Luminance	0.2158 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2789B3 #B35127

analogous

#27B397 #2789B3 #2743B3

triadic

#2789B3 #B32789 #89B327

tetradic

#2789B3 #9727B3 #B35127 #43B327

square

#2789B3 #9727B3 #B35127 #43B327

split-complementary

#2789B3 #B32743 #B39727

monochromatic

#113C4E #1C6381 #2789B3 #41A9D6 #74C0E1

Accessibility & contrast

On white

3.95

#2789B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#2789B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2789B3

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2789B3	#FFFFFF	#000000	##000000
##2789B3	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7487B5

Deuteranopia (green-blind)

#617AB2

Tritanopia (blue-blind)

#009497

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #2789b3;
/* rgb */ color: rgb(39, 137, 179);
/* oklch */ color: oklch(59.4% 0.108 231.6);

Tailwind

colors: {
  custom: {
    50: '#77abca',
    500: '#2789b3',
    950: '#000000',
  },
}

SCSS

$custom: #2789b3;
$custom-light: #77abca;
$custom-dark: #000000;

JSON

{
  "hex": "#2789b3",
  "rgb": {
    "r": 39,
    "g": 137,
    "b": 179
  },
  "hsl": {
    "h": 198,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.59397,
    "c": 0.10762,
    "h": 231.6
  },
  "luminance": 0.21577
}

Semantic roles & 50–950 ramp

primary

#2789B3

secondary

#C8896E

accent

#7341E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2789B3

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

Preview Lab → · Contrast checker → · Palette generator →