#2B91BC#2B91BC

#2B91BC is a mid, moderate cyan. Relative luminance 0.244; OKLCH L 61.9% C 0.111 H 231.0°. Best body text is #000000 at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#2B91BC
RGB	rgb(43, 145, 188)
HSL	hsl(198, 63%, 45%)
HSV	hsv(198, 77%, 74%)
CMYK	cmyk(77.1%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(56.48, -14.05, -30.57)
CIE-LCH	lch(56.48, 33.65, 245.32°)
OKLab	oklab(61.87% -0.0696 -0.086)
OKLCH	oklch(61.87% 0.111 231)
XYZ	xyz(20.1951, 24.3928, 51.2111)
Luminance	0.2440 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B91BC #BC562B

analogous

#2BBC9E #2B91BC #2B48BC

triadic

#2B91BC #BC2B91 #91BC2B

tetradic

#2B91BC #9E2BBC #BC562B #48BC2B

square

#2B91BC #9E2BBC #BC562B #48BC2B

split-complementary

#2B91BC #BC2B48 #BC9E2B

monochromatic

#144458 #206B8A #2B91BC #4EAED6 #80C5E2

Accessibility & contrast

On white

3.57

#2B91BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.88

#2B91BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2B91BC

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B91BC	#FFFFFF	#000000	##000000
##2B91BC	1.00	3.57	5.88	5.88
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.88	21.00	1.00	1.00
##000000	5.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8FBE

Deuteranopia (green-blind)

#6881BB

Tritanopia (blue-blind)

#009D9F

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #2b91bc;
/* rgb */ color: rgb(43, 145, 188);
/* oklch */ color: oklch(61.9% 0.111 231.0);

Tailwind

colors: {
  custom: {
    50: '#7ab1d0',
    500: '#2b91bc',
    950: '#000000',
  },
}

SCSS

$custom: #2b91bc;
$custom-light: #7ab1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b91bc",
  "rgb": {
    "r": 43,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 197.793,
    "s": 62.771,
    "l": 45.294
  },
  "oklch": {
    "l": 0.61869,
    "c": 0.11063,
    "h": 231
  },
  "luminance": 0.24395
}

Semantic roles & 50–950 ramp

primary

#2B91BC

secondary

#CB9178

accent

#7342E6

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #2B91BC

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

Preview Lab → · Contrast checker → · Palette generator →