#2B81B1#2B81B1

#2B81B1 is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.5% C 0.109 H 237.8°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#2B81B1
RGB	rgb(43, 129, 177)
HSL	hsl(201, 61%, 43%)
HSV	hsv(201, 76%, 69%)
CMYK	cmyk(75.7%, 27.1%, 0%, 30.6%)
CIE-LAB	lab(51.14, -8.89, -32.61)
CIE-LCH	lch(51.14, 33.80, 254.74°)
OKLab	oklab(57.45% -0.0579 -0.0921)
OKLCH	oklch(57.45% 0.109 237.8)
XYZ	xyz(16.7792, 19.3865, 44.4441)
Luminance	0.1939 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B81B1 #B15B2B

analogous

#2BB19E #2B81B1 #2B3EB1

triadic

#2B81B1 #B12B81 #81B12B

tetradic

#2B81B1 #9E2BB1 #B15B2B #3EB12B

square

#2B81B1 #9E2BB1 #B15B2B #3EB12B

split-complementary

#2B81B1 #B12B3E #B19E2B

monochromatic

#13394F #1F5D80 #2B81B1 #47A0D2 #78BADE

Accessibility & contrast

On white

4.31

#2B81B1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#2B81B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2B81B1

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B81B1	#FFFFFF	#000000	##000000
##2B81B1	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A81B3

Deuteranopia (green-blind)

#5874B0

Tritanopia (blue-blind)

#008D92

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #2b81b1;
/* rgb */ color: rgb(43, 129, 177);
/* oklch */ color: oklch(57.5% 0.109 237.8);

Tailwind

colors: {
  custom: {
    50: '#78a5c8',
    500: '#2b81b1',
    950: '#000000',
  },
}

SCSS

$custom: #2b81b1;
$custom-light: #78a5c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b81b1",
  "rgb": {
    "r": 43,
    "g": 129,
    "b": 177
  },
  "hsl": {
    "h": 201.493,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.57453,
    "c": 0.10877,
    "h": 237.8
  },
  "luminance": 0.19388
}

Semantic roles & 50–950 ramp

primary

#2B81B1

secondary

#C69072

accent

#7D44E4

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #2B81B1

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

Preview Lab → · Contrast checker → · Palette generator →