#3370C6#3370C6

#3370C6 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.0% C 0.148 H 257.6°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#3370C6
RGB	rgb(51, 112, 198)
HSL	hsl(215, 59%, 49%)
HSV	hsv(215, 74%, 78%)
CMYK	cmyk(74.2%, 43.4%, 0%, 22.4%)
CIE-LAB	lab(47.45, 10.12, -50.51)
CIE-LCH	lch(47.45, 51.52, 281.33°)
OKLab	oklab(54.99% -0.0319 -0.1446)
OKLCH	oklch(54.99% 0.148 257.6)
XYZ	xyz(17.3487, 16.3674, 55.6600)
Luminance	0.1637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3370C6 #C68933

analogous

#33BAC6 #3370C6 #4033C6

triadic

#3370C6 #C63370 #70C633

tetradic

#3370C6 #C633BA #C68933 #33C640

square

#3370C6 #C633BA #C68933 #33C640

split-complementary

#3370C6 #C64033 #BAC633

monochromatic

#1A3965 #265495 #3370C6 #6091D6 #91B3E3

Accessibility & contrast

On white

4.91

#3370C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#3370C6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3370C6

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3370C6	#FFFFFF	#000000	##FFFFFF
##3370C6	1.00	4.91	4.27	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4578C9

Deuteranopia (green-blind)

#2A6AC4

Tritanopia (blue-blind)

#008491

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3370c6;
/* rgb */ color: rgb(51, 112, 198);
/* oklch */ color: oklch(55.0% 0.148 257.6);

Tailwind

colors: {
  custom: {
    50: '#7e98d8',
    500: '#3370c6',
    950: '#000000',
  },
}

SCSS

$custom: #3370c6;
$custom-light: #7e98d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3370c6",
  "rgb": {
    "r": 51,
    "g": 112,
    "b": 198
  },
  "hsl": {
    "h": 215.102,
    "s": 59.036,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54988,
    "c": 0.14805,
    "h": 257.6
  },
  "luminance": 0.16369
}

Semantic roles & 50–950 ramp

primary

#3370C6

secondary

#CDB087

accent

#A146E2

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3370C6

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

Preview Lab → · Contrast checker → · Palette generator →