#357DB8#357DB8

#357DB8 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.2% C 0.116 H 246.5°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX#357DB8
RGBrgb(53, 125, 184)
HSLhsl(207, 55%, 46%)
HSVhsv(207, 71%, 72%)
CMYKcmyk(71.2%, 32.1%, 0%, 27.8%)
CIE-LABlab(50.55, -2.67, -37.54)
CIE-LCHlch(50.55, 37.64, 265.93°)
OKLaboklab(57.18% -0.0462 -0.1063)
OKLCHoklch(57.18% 0.116 246.5)
XYZxyz(17.4503, 18.8829, 48.0632)
Luminance0.1888 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#357DB8 #B87035
analogous
#35B8B2 #357DB8 #353CB8
triadic
#357DB8 #B8357D #7DB835
tetradic
#357DB8 #B235B8 #B87035 #3CB835
square
#357DB8 #B235B8 #B87035 #3CB835
split-complementary
#357DB8 #B8353C #B8B235
monochromatic
#1A3C59 #275D88 #357DB8 #5B9BD0 #8AB8DD

Accessibility & contrast

On white

4.40
#357DB8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.78
#357DB8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357DB8
4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##357DB8#FFFFFF#000000##000000
##357DB81.004.404.784.78
#FFFFFF4.401.0021.0021.00
#0000004.7821.001.001.00
##0000004.7821.001.001.00

Color blindness preview

Protanopia (red-blind)
#627FBB
Deuteranopia (green-blind)
#5073B7
Tritanopia (blue-blind)
#008B92
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #357db8;
/* rgb */ color: rgb(53, 125, 184);
/* oklch */ color: oklch(57.2% 0.116 246.5);
Tailwind
colors: {
  custom: {
    50: '#7ca2cd',
    500: '#357db8',
    950: '#000000',
  },
}
SCSS
$custom: #357db8;
$custom-light: #7ca2cd;
$custom-dark: #000000;
JSON
{
  "hex": "#357db8",
  "rgb": {
    "r": 53,
    "g": 125,
    "b": 184
  },
  "hsl": {
    "h": 207.023,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.57179,
    "c": 0.11595,
    "h": 246.5
  },
  "luminance": 0.18885
}

Semantic roles & 50–950 ramp

primary
#357DB8
secondary
#C7A181
accent
#8C49DF
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0F13
muted
#7C7E82

Preview Lab

Preview with #357DB8

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

Preview Lab → · Contrast checker → · Palette generator →

#357DB8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva