#3D70BB#3D70BB

#3D70BB is a mid, vivid blue. Relative luminance 0.162; OKLCH L 54.7% C 0.130 H 258.0°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#3D70BB
RGB	rgb(61, 112, 187)
HSL	hsl(216, 51%, 49%)
HSV	hsv(216, 67%, 73%)
CMYK	cmyk(67.4%, 40.1%, 0%, 26.7%)
CIE-LAB	lab(47.19, 7.58, -44.57)
CIE-LCH	lch(47.19, 45.21, 279.65°)
OKLab	oklab(54.68% -0.0269 -0.127)
OKLCH	oklch(54.68% 0.13 258)
XYZ	xyz(16.6850, 16.1666, 49.2452)
Luminance	0.1617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D70BB #BB883D

analogous

#3DAFBB #3D70BB #493DBB

triadic

#3D70BB #BB3D70 #70BB3D

tetradic

#3D70BB #BB3DAF #BB883D #3DBB49

square

#3D70BB #BB3DAF #BB883D #3DBB49

split-complementary

#3D70BB #BB493D #AFBB3D

monochromatic

#1F395F #2E548D #3D70BB #6891CE #96B2DD

Accessibility & contrast

On white

4.96

#3D70BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#3D70BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D70BB

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D70BB	#FFFFFF	#000000	##FFFFFF
##3D70BB	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E76BE

Deuteranopia (green-blind)

#3B6BB9

Tritanopia (blue-blind)

#00818C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3d70bb;
/* rgb */ color: rgb(61, 112, 187);
/* oklch */ color: oklch(54.7% 0.130 258.0);

Tailwind

colors: {
  custom: {
    50: '#8098d0',
    500: '#3d70bb',
    950: '#000000',
  },
}

SCSS

$custom: #3d70bb;
$custom-light: #8098d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d70bb",
  "rgb": {
    "r": 61,
    "g": 112,
    "b": 187
  },
  "hsl": {
    "h": 215.714,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.54685,
    "c": 0.12979,
    "h": 258
  },
  "luminance": 0.16168
}

Semantic roles & 50–950 ramp

primary

#3D70BB

secondary

#C8B08C

accent

#A14EDA

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3D70BB

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

Preview Lab → · Contrast checker → · Palette generator →