#2891B3#2891B3

#2891B3 is a mid, moderate cyan. Relative luminance 0.240; OKLCH L 61.4% C 0.104 H 224.7°. Best body text is #000000 at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#2891B3
RGB	rgb(40, 145, 179)
HSL	hsl(195, 63%, 43%)
HSV	hsv(195, 78%, 70%)
CMYK	cmyk(77.7%, 19%, 0%, 29.8%)
CIE-LAB	lab(56.04, -17.49, -26.14)
CIE-LCH	lch(56.04, 31.45, 236.21°)
OKLab	oklab(61.38% -0.0742 -0.0733)
OKLCH	oklch(61.38% 0.104 224.7)
XYZ	xyz(19.1338, 23.9543, 46.2543)
Luminance	0.2396 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2891B3 #B34A28

analogous

#28B38F #2891B3 #284CB3

triadic

#2891B3 #B32891 #91B328

tetradic

#2891B3 #8F28B3 #B34A28 #4CB328

square

#2891B3 #8F28B3 #B34A28 #4CB328

split-complementary

#2891B3 #B3284C #B38F28

monochromatic

#12404F #1D6881 #2891B3 #43B1D5 #75C6E0

Accessibility & contrast

On white

3.63

#2891B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.79

#2891B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2891B3

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2891B3	#FFFFFF	#000000	##000000
##2891B3	1.00	3.63	5.79	5.79
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.79	21.00	1.00	1.00
##000000	5.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8EB5

Deuteranopia (green-blind)

#6C81B3

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #2891b3;
/* rgb */ color: rgb(40, 145, 179);
/* oklch */ color: oklch(61.4% 0.104 224.7);

Tailwind

colors: {
  custom: {
    50: '#78b1c9',
    500: '#2891b3',
    950: '#000000',
  },
}

SCSS

$custom: #2891b3;
$custom-light: #78b1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2891b3",
  "rgb": {
    "r": 40,
    "g": 145,
    "b": 179
  },
  "hsl": {
    "h": 194.676,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.61378,
    "c": 0.10426,
    "h": 224.7
  },
  "luminance": 0.23957
}

Semantic roles & 50–950 ramp

primary

#2891B3

secondary

#C8856F

accent

#6A41E6

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2891B3

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

Preview Lab → · Contrast checker → · Palette generator →