#3D71CB#3D71CB

#3D71CB is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.9% C 0.150 H 260.6°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3D71CB
RGB	rgb(61, 113, 203)
HSL	hsl(218, 58%, 52%)
HSV	hsv(218, 70%, 80%)
CMYK	cmyk(70%, 44.3%, 0%, 20.4%)
CIE-LAB	lab(48.40, 12.72, -51.84)
CIE-LCH	lch(48.40, 53.38, 283.79°)
OKLab	oklab(55.92% -0.0246 -0.1483)
OKLCH	oklch(55.92% 0.15 260.6)
XYZ	xyz(18.6052, 17.1122, 58.8108)
Luminance	0.1711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D71CB #CB973D

analogous

#3DB8CB #3D71CB #503DCB

triadic

#3D71CB #CB3D71 #71CB3D

tetradic

#3D71CB #CB3DB8 #CB973D #3DCB50

square

#3D71CB #CB3DB8 #CB973D #3DCB50

split-complementary

#3D71CB #CB503D #B8CB3D

monochromatic

#1E3C70 #2B56A0 #3D71CB #6D94D8 #9EB8E5

Accessibility & contrast

On white

4.75

#3D71CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3D71CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D71CB

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D71CB	#FFFFFF	#000000	##FFFFFF
##3D71CB	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#447ACE

Deuteranopia (green-blind)

#2A6DC9

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3d71cb;
/* rgb */ color: rgb(61, 113, 203);
/* oklch */ color: oklch(55.9% 0.150 260.6);

Tailwind

colors: {
  custom: {
    50: '#8399db',
    500: '#3d71cb',
    950: '#000000',
  },
}

SCSS

$custom: #3d71cb;
$custom-light: #8399db;
$custom-dark: #000000;

JSON

{
  "hex": "#3d71cb",
  "rgb": {
    "r": 61,
    "g": 113,
    "b": 203
  },
  "hsl": {
    "h": 218.028,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.5592,
    "c": 0.15034,
    "h": 260.6
  },
  "luminance": 0.17114
}

Semantic roles & 50–950 ramp

primary

#3D71CB

secondary

#D1BA93

accent

#A947E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3D71CB

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

Preview Lab → · Contrast checker → · Palette generator →