#357CC3#357CC3

#357CC3 is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.6% C 0.131 H 251.2°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#357CC3
RGB	rgb(53, 124, 195)
HSL	hsl(210, 57%, 49%)
HSV	hsv(210, 73%, 76%)
CMYK	cmyk(72.8%, 36.4%, 0%, 23.5%)
CIE-LAB	lab(50.82, 1.88, -43.43)
CIE-LCH	lch(50.82, 43.47, 272.48°)
OKLab	oklab(57.57% -0.0422 -0.1236)
OKLCH	oklch(57.57% 0.131 251.2)
XYZ	xyz(18.5225, 19.1102, 54.3316)
Luminance	0.1911 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357CC3 #C37C35

analogous

#35C3C3 #357CC3 #3535C3

triadic

#357CC3 #C3357C #7CC335

tetradic

#357CC3 #C335C3 #C37C35 #35C335

square

#357CC3 #C335C3 #C37C35 #35C335

split-complementary

#357CC3 #C33535 #C3C335

monochromatic

#1B3F63 #285D93 #357CC3 #619BD4 #91B9E1

Accessibility & contrast

On white

4.35

#357CC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#357CC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357CC3

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357CC3	#FFFFFF	#000000	##000000
##357CC3	1.00	4.35	4.82	4.82
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B80C6

Deuteranopia (green-blind)

#4773C2

Tritanopia (blue-blind)

#008D96

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #357cc3;
/* rgb */ color: rgb(53, 124, 195);
/* oklch */ color: oklch(57.6% 0.131 251.2);

Tailwind

colors: {
  custom: {
    50: '#7ea1d5',
    500: '#357cc3',
    950: '#000000',
  },
}

SCSS

$custom: #357cc3;
$custom-light: #7ea1d5;
$custom-dark: #000000;

JSON

{
  "hex": "#357cc3",
  "rgb": {
    "r": 53,
    "g": 124,
    "b": 195
  },
  "hsl": {
    "h": 210,
    "s": 57.258,
    "l": 48.627
  },
  "oklch": {
    "l": 0.57571,
    "c": 0.13057,
    "h": 251.2
  },
  "luminance": 0.19112
}

Semantic roles & 50–950 ramp

primary

#357CC3

secondary

#CCAA88

accent

#9447E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #357CC3

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

Preview Lab → · Contrast checker → · Palette generator →