#3D81BF#3D81BF

#3D81BF is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.8% C 0.118 H 248.6°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3D81BF
RGB	rgb(61, 129, 191)
HSL	hsl(209, 52%, 49%)
HSV	hsv(209, 68%, 75%)
CMYK	cmyk(68.1%, 32.5%, 0%, 25.1%)
CIE-LAB	lab(52.34, -1.34, -38.71)
CIE-LCH	lch(52.34, 38.74, 268.02°)
OKLab	oklab(58.78% -0.0429 -0.1096)
OKLCH	oklch(58.78% 0.118 248.6)
XYZ	xyz(19.1752, 20.4522, 52.2172)
Luminance	0.2045 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D81BF #BF7B3D

analogous

#3DBFBC #3D81BF #3D40BF

triadic

#3D81BF #BF3D81 #81BF3D

tetradic

#3D81BF #BC3DBF #BF7B3D #40BF3D

square

#3D81BF #BC3DBF #BF7B3D #40BF3D

split-complementary

#3D81BF #BF3D40 #BFBC3D

monochromatic

#1F4262 #2E6291 #3D81BF #6A9FCF #98BDDE

Accessibility & contrast

On white

4.13

#3D81BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#3D81BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D81BF

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D81BF	#FFFFFF	#000000	##000000
##3D81BF	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6584C2

Deuteranopia (green-blind)

#5377BE

Tritanopia (blue-blind)

#009097

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3d81bf;
/* rgb */ color: rgb(61, 129, 191);
/* oklch */ color: oklch(58.8% 0.118 248.6);

Tailwind

colors: {
  custom: {
    50: '#81a5d2',
    500: '#3d81bf',
    950: '#000000',
  },
}

SCSS

$custom: #3d81bf;
$custom-light: #81a5d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3d81bf",
  "rgb": {
    "r": 61,
    "g": 129,
    "b": 191
  },
  "hsl": {
    "h": 208.615,
    "s": 51.587,
    "l": 49.412
  },
  "oklch": {
    "l": 0.58779,
    "c": 0.11774,
    "h": 248.6
  },
  "luminance": 0.20454
}

Semantic roles & 50–950 ramp

primary

#3D81BF

secondary

#CAAB8E

accent

#914DDB

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3D81BF

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

Preview Lab → · Contrast checker → · Palette generator →