#3370B7#3370B7

#3370B7 is a mid, vivid cyan. Relative luminance 0.157; OKLCH L 54.0% C 0.128 H 254.1°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#3370B7
RGB	rgb(51, 112, 183)
HSL	hsl(212, 56%, 46%)
HSV	hsv(212, 72%, 72%)
CMYK	cmyk(72.1%, 38.8%, 0%, 28.2%)
CIE-LAB	lab(46.59, 4.57, -43.23)
CIE-LCH	lch(46.59, 43.47, 276.04°)
OKLab	oklab(54.04% -0.0351 -0.1232)
OKLCH	oklch(54.04% 0.128 254.1)
XYZ	xyz(15.7035, 15.7093, 46.9952)
Luminance	0.1571 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3370B7 #B77A33

analogous

#33B2B7 #3370B7 #3833B7

triadic

#3370B7 #B73370 #70B733

tetradic

#3370B7 #B733B2 #B77A33 #33B738

square

#3370B7 #B733B2 #B77A33 #33B738

split-complementary

#3370B7 #B73833 #B2B733

monochromatic

#183557 #265387 #3370B7 #578FD0 #87AFDE

Accessibility & contrast

On white

5.07

#3370B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#3370B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3370B7

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3370B7	#FFFFFF	#000000	##FFFFFF
##3370B7	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F75BA

Deuteranopia (green-blind)

#3B69B6

Tritanopia (blue-blind)

#00818A

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3370b7;
/* rgb */ color: rgb(51, 112, 183);
/* oklch */ color: oklch(54.0% 0.128 254.1);

Tailwind

colors: {
  custom: {
    50: '#7b98cd',
    500: '#3370b7',
    950: '#000000',
  },
}

SCSS

$custom: #3370b7;
$custom-light: #7b98cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3370b7",
  "rgb": {
    "r": 51,
    "g": 112,
    "b": 183
  },
  "hsl": {
    "h": 212.273,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.54039,
    "c": 0.1281,
    "h": 254.1
  },
  "luminance": 0.15711
}

Semantic roles & 50–950 ramp

primary

#3370B7

secondary

#C7A67F

accent

#9A48E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3370B7

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

Preview Lab → · Contrast checker → · Palette generator →