#2F81B3#2F81B3

#2F81B3 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.7% C 0.109 H 239.7°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#2F81B3
RGB	rgb(47, 129, 179)
HSL	hsl(203, 58%, 44%)
HSV	hsv(203, 74%, 70%)
CMYK	cmyk(73.7%, 27.9%, 0%, 29.8%)
CIE-LAB	lab(51.33, -7.66, -33.44)
CIE-LCH	lch(51.33, 34.31, 257.10°)
OKLab	oklab(57.67% -0.0552 -0.0945)
OKLCH	oklch(57.67% 0.109 239.7)
XYZ	xyz(17.1560, 19.5576, 45.5099)
Luminance	0.1956 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F81B3 #B3612F

analogous

#2FB3A3 #2F81B3 #2F3FB3

triadic

#2F81B3 #B32F81 #81B32F

tetradic

#2F81B3 #A32FB3 #B3612F #3FB32F

square

#2F81B3 #A32FB3 #B3612F #3FB32F

split-complementary

#2F81B3 #B32F3F #B3A32F

monochromatic

#163B52 #225E83 #2F81B3 #4F9FD1 #7FBADD

Accessibility & contrast

On white

4.28

#2F81B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#2F81B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2F81B3

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F81B3	#FFFFFF	#000000	##000000
##2F81B3	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A81B5

Deuteranopia (green-blind)

#5875B2

Tritanopia (blue-blind)

#008E92

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #2f81b3;
/* rgb */ color: rgb(47, 129, 179);
/* oklch */ color: oklch(57.7% 0.109 239.7);

Tailwind

colors: {
  custom: {
    50: '#79a5ca',
    500: '#2f81b3',
    950: '#000000',
  },
}

SCSS

$custom: #2f81b3;
$custom-light: #79a5ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f81b3",
  "rgb": {
    "r": 47,
    "g": 129,
    "b": 179
  },
  "hsl": {
    "h": 202.727,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.57669,
    "c": 0.10939,
    "h": 239.7
  },
  "luminance": 0.1956
}

Semantic roles & 50–950 ramp

primary

#2F81B3

secondary

#C69578

accent

#8146E2

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #2F81B3

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

Preview Lab → · Contrast checker → · Palette generator →