#3D81B2#3D81B2

#3D81B2 is a mid, moderate cyan. Relative luminance 0.199; OKLCH L 58.1% C 0.102 H 242.7°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#3D81B2
RGB	rgb(61, 129, 178)
HSL	hsl(205, 49%, 47%)
HSV	hsv(205, 66%, 70%)
CMYK	cmyk(65.7%, 27.5%, 0%, 30.2%)
CIE-LAB	lab(51.73, -5.83, -32.22)
CIE-LCH	lch(51.73, 32.74, 259.74°)
OKLab	oklab(58.09% -0.0469 -0.0907)
OKLCH	oklch(58.09% 0.102 242.7)
XYZ	xyz(17.8076, 19.9051, 45.0145)
Luminance	0.1991 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D81B2 #B26E3D

analogous

#3DB2A9 #3D81B2 #3D47B2

triadic

#3D81B2 #B23D81 #81B23D

tetradic

#3D81B2 #A93DB2 #B26E3D #47B23D

square

#3D81B2 #A93DB2 #B26E3D #47B23D

split-complementary

#3D81B2 #B23D47 #B2A93D

monochromatic

#1E3F57 #2D6084 #3D81B2 #639EC9 #90BBD9

Accessibility & contrast

On white

4.22

#3D81B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#3D81B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D81B2

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D81B2	#FFFFFF	#000000	##000000
##3D81B2	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B82B4

Deuteranopia (green-blind)

#5B76B1

Tritanopia (blue-blind)

#008D92

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3d81b2;
/* rgb */ color: rgb(61, 129, 178);
/* oklch */ color: oklch(58.1% 0.102 242.7);

Tailwind

colors: {
  custom: {
    50: '#7fa5c9',
    500: '#3d81b2',
    950: '#000000',
  },
}

SCSS

$custom: #3d81b2;
$custom-light: #7fa5c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3d81b2",
  "rgb": {
    "r": 61,
    "g": 129,
    "b": 178
  },
  "hsl": {
    "h": 205.128,
    "s": 48.954,
    "l": 46.863
  },
  "oklch": {
    "l": 0.58093,
    "c": 0.10216,
    "h": 242.7
  },
  "luminance": 0.19907
}

Semantic roles & 50–950 ramp

primary

#3D81B2

secondary

#C4A087

accent

#894FD9

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3D81B2

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

Preview Lab → · Contrast checker → · Palette generator →