#357BDD#357BDD

#357BDD is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.0% C 0.165 H 257.6°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#357BDD
RGB	rgb(53, 123, 221)
HSL	hsl(215, 71%, 54%)
HSV	hsv(215, 76%, 87%)
CMYK	cmyk(76%, 44.3%, 0%, 13.3%)
CIE-LAB	lab(52.00, 12.03, -56.31)
CIE-LCH	lch(52.00, 57.58, 282.05°)
OKLab	oklab(58.97% -0.0355 -0.1614)
OKLCH	oklch(58.97% 0.165 257.6)
XYZ	xyz(21.5975, 20.1408, 71.1419)
Luminance	0.2014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BDD #DD9735

analogous

#35CFDD #357BDD #4335DD

triadic

#357BDD #DD357B #7BDD35

tetradic

#357BDD #DD35CF #DD9735 #35DD43

square

#357BDD #DD35CF #DD9735 #35DD43

split-complementary

#357BDD #DD4335 #CFDD35

monochromatic

#164382 #1F5EB6 #357BDD #699DE6 #9EBFEF

Accessibility & contrast

On white

4.18

#357BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#357BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BDD

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BDD	#FFFFFF	#000000	##000000
##357BDD	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4984E1

Deuteranopia (green-blind)

#2575DB

Tritanopia (blue-blind)

#0092A1

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #357bdd;
/* rgb */ color: rgb(53, 123, 221);
/* oklch */ color: oklch(59.0% 0.165 257.6);

Tailwind

colors: {
  custom: {
    50: '#83a0e8',
    500: '#357bdd',
    950: '#000000',
  },
}

SCSS

$custom: #357bdd;
$custom-light: #83a0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#357bdd",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 221
  },
  "hsl": {
    "h": 215,
    "s": 71.186,
    "l": 53.725
  },
  "oklch": {
    "l": 0.58965,
    "c": 0.16526,
    "h": 257.6
  },
  "luminance": 0.20143
}

Semantic roles & 50–950 ramp

primary

#357BDD

secondary

#DBBD93

accent

#A33AEE

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #357BDD

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

Preview Lab → · Contrast checker → · Palette generator →