#357BD1#357BD1

#357BD1 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.2% C 0.150 H 255.3°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#357BD1
RGB	rgb(53, 123, 209)
HSL	hsl(213, 63%, 51%)
HSV	hsv(213, 75%, 82%)
CMYK	cmyk(74.6%, 41.1%, 0%, 18%)
CIE-LAB	lab(51.29, 7.61, -50.65)
CIE-LCH	lch(51.29, 51.22, 278.54°)
OKLab	oklab(58.19% -0.0379 -0.1448)
OKLCH	oklch(58.19% 0.15 255.3)
XYZ	xyz(20.0555, 19.5240, 63.0208)
Luminance	0.1953 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BD1 #D18B35

analogous

#35C9D1 #357BD1 #3D35D1

triadic

#357BD1 #D1357B #7BD135

tetradic

#357BD1 #D135C9 #D18B35 #35D13D

square

#357BD1 #D135C9 #D18B35 #35D13D

split-complementary

#357BD1 #D13D35 #C9D135

monochromatic

#1A4172 #255EA4 #357BD1 #679CDC #99BCE8

Accessibility & contrast

On white

4.28

#357BD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#357BD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BD1

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BD1	#FFFFFF	#000000	##000000
##357BD1	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5182D4

Deuteranopia (green-blind)

#3774CF

Tritanopia (blue-blind)

#008F9C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #357bd1;
/* rgb */ color: rgb(53, 123, 209);
/* oklch */ color: oklch(58.2% 0.150 255.3);

Tailwind

colors: {
  custom: {
    50: '#81a0df',
    500: '#357bd1',
    950: '#000000',
  },
}

SCSS

$custom: #357bd1;
$custom-light: #81a0df;
$custom-dark: #000000;

JSON

{
  "hex": "#357bd1",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 209
  },
  "hsl": {
    "h": 213.077,
    "s": 62.903,
    "l": 51.373
  },
  "oklch": {
    "l": 0.58194,
    "c": 0.14964,
    "h": 255.3
  },
  "luminance": 0.19526
}

Semantic roles & 50–950 ramp

primary

#357BD1

secondary

#D3B48F

accent

#9C42E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #357BD1

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

Preview Lab → · Contrast checker → · Palette generator →