#2B5F81#2B5F81

#2B5F81 is a mid, moderate cyan. Relative luminance 0.103; OKLCH L 46.6% C 0.078 H 240.1°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#2B5F81
RGB	rgb(43, 95, 129)
HSL	hsl(204, 50%, 34%)
HSV	hsv(204, 67%, 51%)
CMYK	cmyk(66.7%, 26.4%, 0%, 49.4%)
CIE-LAB	lab(38.34, -5.93, -24.14)
CIE-LCH	lch(38.34, 24.86, 256.20°)
OKLab	oklab(46.57% -0.0391 -0.0679)
OKLCH	oklch(46.57% 0.078 240.1)
XYZ	xyz(9.0494, 10.2821, 22.2723)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5F81 #814D2B

analogous

#2B8178 #2B5F81 #2B3481

triadic

#2B5F81 #812B5F #5F812B

tetradic

#2B5F81 #782B81 #814D2B #34812B

square

#2B5F81 #782B81 #814D2B #34812B

split-complementary

#2B5F81 #812B34 #81782B

monochromatic

#0C1B25 #1C3D53 #2B5F81 #3A81AF #5D9EC9

Accessibility & contrast

On white

6.87

#2B5F81 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#2B5F81 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5F81

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5F81	#FFFFFF	#000000	##FFFFFF
##2B5F81	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5F83

Deuteranopia (green-blind)

#445680

Tritanopia (blue-blind)

#00676B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2b5f81;
/* rgb */ color: rgb(43, 95, 129);
/* oklch */ color: oklch(46.6% 0.078 240.1);

Tailwind

colors: {
  custom: {
    50: '#6e8ca5',
    500: '#2b5f81',
    950: '#000000',
  },
}

SCSS

$custom: #2b5f81;
$custom-light: #6e8ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5f81",
  "rgb": {
    "r": 43,
    "g": 95,
    "b": 129
  },
  "hsl": {
    "h": 203.721,
    "s": 50,
    "l": 33.725
  },
  "oklch": {
    "l": 0.46568,
    "c": 0.07832,
    "h": 240.1
  },
  "luminance": 0.10283
}

Semantic roles & 50–950 ramp

primary

#2B5F81

secondary

#AF7B59

accent

#854EDA

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C0F

muted

#7B7D7F

Preview Lab

Preview with #2B5F81

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

Preview Lab → · Contrast checker → · Palette generator →