#357EC9#357EC9

#357EC9 is a mid, vivid cyan. Relative luminance 0.199; OKLCH L 58.4% C 0.136 H 251.8°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#357EC9
RGB	rgb(53, 126, 201)
HSL	hsl(210, 58%, 50%)
HSV	hsv(210, 74%, 79%)
CMYK	cmyk(73.6%, 37.3%, 0%, 21.2%)
CIE-LAB	lab(51.72, 2.85, -45.43)
CIE-LCH	lch(51.72, 45.52, 273.59°)
OKLab	oklab(58.38% -0.0425 -0.1294)
OKLCH	oklch(58.38% 0.136 251.8)
XYZ	xyz(19.4677, 19.8934, 58.0608)
Luminance	0.1990 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357EC9 #C98035

analogous

#35C8C9 #357EC9 #3635C9

triadic

#357EC9 #C9357E #7EC935

tetradic

#357EC9 #C935C8 #C98035 #35C936

square

#357EC9 #C935C8 #C98035 #35C936

split-complementary

#357EC9 #C93635 #C8C935

monochromatic

#1B4168 #286099 #357EC9 #659DD6 #95BCE3

Accessibility & contrast

On white

4.22

#357EC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#357EC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357EC9

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357EC9	#FFFFFF	#000000	##000000
##357EC9	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B83CC

Deuteranopia (green-blind)

#4575C8

Tritanopia (blue-blind)

#00909A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #357ec9;
/* rgb */ color: rgb(53, 126, 201);
/* oklch */ color: oklch(58.4% 0.136 251.8);

Tailwind

colors: {
  custom: {
    50: '#7fa2da',
    500: '#357ec9',
    950: '#000000',
  },
}

SCSS

$custom: #357ec9;
$custom-light: #7fa2da;
$custom-dark: #000000;

JSON

{
  "hex": "#357ec9",
  "rgb": {
    "r": 53,
    "g": 126,
    "b": 201
  },
  "hsl": {
    "h": 210.405,
    "s": 58.268,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5838,
    "c": 0.13619,
    "h": 251.8
  },
  "luminance": 0.19896
}

Semantic roles & 50–950 ramp

primary

#357EC9

secondary

#CEAD8B

accent

#9546E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0F15

muted

#7C7E83

Preview Lab

Preview with #357EC9

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

Preview Lab → · Contrast checker → · Palette generator →