#2991BB#2991BB

#2991BB is a mid, moderate cyan. Relative luminance 0.243; OKLCH L 61.8% C 0.110 H 230.1°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#2991BB
RGB	rgb(41, 145, 187)
HSL	hsl(197, 64%, 45%)
HSV	hsv(197, 78%, 73%)
CMYK	cmyk(78.1%, 22.5%, 0%, 26.7%)
CIE-LAB	lab(56.39, -14.62, -30.14)
CIE-LCH	lch(56.39, 33.50, 244.12°)
OKLab	oklab(61.78% -0.0708 -0.0848)
OKLCH	oklch(61.78% 0.11 230.1)
XYZ	xyz(20.0058, 24.3076, 50.6415)
Luminance	0.2431 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2991BB #BB5329

analogous

#29BB9C #2991BB #2948BB

triadic

#2991BB #BB2991 #91BB29

tetradic

#2991BB #9C29BB #BB5329 #48BB29

square

#2991BB #9C29BB #BB5329 #48BB29

split-complementary

#2991BB #BB2948 #BB9C29

monochromatic

#134357 #1E6A89 #2991BB #4AAFD7 #7CC5E2

Accessibility & contrast

On white

3.58

#2991BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#2991BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2991BB

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2991BB	#FFFFFF	#000000	##000000
##2991BB	1.00	3.58	5.86	5.86
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8FBD

Deuteranopia (green-blind)

#6881BA

Tritanopia (blue-blind)

#009D9F

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #2991bb;
/* rgb */ color: rgb(41, 145, 187);
/* oklch */ color: oklch(61.8% 0.110 230.1);

Tailwind

colors: {
  custom: {
    50: '#7ab1cf',
    500: '#2991bb',
    950: '#000000',
  },
}

SCSS

$custom: #2991bb;
$custom-light: #7ab1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2991bb",
  "rgb": {
    "r": 41,
    "g": 145,
    "b": 187
  },
  "hsl": {
    "h": 197.26,
    "s": 64.035,
    "l": 44.706
  },
  "oklch": {
    "l": 0.61775,
    "c": 0.11044,
    "h": 230.1
  },
  "luminance": 0.2431
}

Semantic roles & 50–950 ramp

primary

#2991BB

secondary

#CB8E75

accent

#7141E7

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #2991BB

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

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