#3D91BB#3D91BB

#3D91BB is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.3% C 0.102 H 233.6°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#3D91BB
RGB	rgb(61, 145, 187)
HSL	hsl(200, 51%, 49%)
HSV	hsv(200, 67%, 73%)
CMYK	cmyk(67.4%, 22.5%, 0%, 26.7%)
CIE-LAB	lab(56.91, -11.91, -29.30)
CIE-LCH	lch(56.91, 31.63, 247.88°)
OKLab	oklab(62.33% -0.0606 -0.0822)
OKLCH	oklch(62.33% 0.102 233.6)
XYZ	xyz(21.0160, 24.8285, 50.6889)
Luminance	0.2483 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D91BB #BB673D

analogous

#3DBBA6 #3D91BB #3D52BB

triadic

#3D91BB #BB3D91 #91BB3D

tetradic

#3D91BB #A63DBB #BB673D #52BB3D

square

#3D91BB #A63DBB #BB673D #52BB3D

split-complementary

#3D91BB #BB3D52 #BBA63D

monochromatic

#1F495F #2E6D8D #3D91BB #68ACCE #96C5DD

Accessibility & contrast

On white

3.52

#3D91BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.97

#3D91BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D91BB

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D91BB	#FFFFFF	#000000	##000000
##3D91BB	1.00	3.52	5.97	5.97
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.97	21.00	1.00	1.00
##000000	5.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D90BD

Deuteranopia (green-blind)

#6B83BA

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3d91bb;
/* rgb */ color: rgb(61, 145, 187);
/* oklch */ color: oklch(62.3% 0.102 233.6);

Tailwind

colors: {
  custom: {
    50: '#81b1cf',
    500: '#3d91bb',
    950: '#000000',
  },
}

SCSS

$custom: #3d91bb;
$custom-light: #81b1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3d91bb",
  "rgb": {
    "r": 61,
    "g": 145,
    "b": 187
  },
  "hsl": {
    "h": 200,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.62331,
    "c": 0.10217,
    "h": 233.6
  },
  "luminance": 0.24831
}

Semantic roles & 50–950 ramp

primary

#3D91BB

secondary

#C8A08C

accent

#7C4EDA

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3D91BB

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

Preview Lab → · Contrast checker → · Palette generator →