#3B70CC#3B70CC

#3B70CC is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.7% C 0.154 H 260.6°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#3B70CC
RGB	rgb(59, 112, 204)
HSL	hsl(218, 59%, 52%)
HSV	hsv(218, 71%, 80%)
CMYK	cmyk(71.1%, 45.1%, 0%, 20%)
CIE-LAB	lab(48.10, 13.42, -52.90)
CIE-LCH	lch(48.10, 54.57, 284.24°)
OKLab	oklab(55.69% -0.0251 -0.1515)
OKLCH	oklch(55.69% 0.154 260.6)
XYZ	xyz(18.4930, 16.8758, 59.3978)
Luminance	0.1688 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B70CC #CC973B

analogous

#3BB9CC #3B70CC #4F3BCC

triadic

#3B70CC #CC3B70 #70CC3B

tetradic

#3B70CC #CC3BB9 #CC973B #3BCC4F

square

#3B70CC #CC3BB9 #CC973B #3BCC4F

split-complementary

#3B70CC #CC4F3B #B9CC3B

monochromatic

#1D3B70 #2A55A0 #3B70CC #6C93D9 #9CB7E5

Accessibility & contrast

On white

4.80

#3B70CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#3B70CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B70CC

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B70CC	#FFFFFF	#000000	##FFFFFF
##3B70CC	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4179CF

Deuteranopia (green-blind)

#246CCA

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3b70cc;
/* rgb */ color: rgb(59, 112, 204);
/* oklch */ color: oklch(55.7% 0.154 260.6);

Tailwind

colors: {
  custom: {
    50: '#8298dc',
    500: '#3b70cc',
    950: '#000000',
  },
}

SCSS

$custom: #3b70cc;
$custom-light: #8298dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b70cc",
  "rgb": {
    "r": 59,
    "g": 112,
    "b": 204
  },
  "hsl": {
    "h": 218.069,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.55688,
    "c": 0.15352,
    "h": 260.6
  },
  "luminance": 0.16878
}

Semantic roles & 50–950 ramp

primary

#3B70CC

secondary

#D1BA92

accent

#A946E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3B70CC

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

Preview Lab → · Contrast checker → · Palette generator →