#357BCC#357BCC

#357BCC is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.9% C 0.143 H 254.2°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#357BCC
RGB	rgb(53, 123, 204)
HSL	hsl(212, 60%, 50%)
HSV	hsv(212, 74%, 80%)
CMYK	cmyk(74%, 39.7%, 0%, 20%)
CIE-LAB	lab(51.01, 5.77, -48.26)
CIE-LCH	lch(51.01, 48.60, 276.82°)
OKLab	oklab(57.88% -0.039 -0.1377)
OKLCH	oklch(57.88% 0.143 254.2)
XYZ	xyz(19.4462, 19.2802, 59.8116)
Luminance	0.1928 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BCC #CC8635

analogous

#35C7CC #357BCC #3A35CC

triadic

#357BCC #CC357B #7BCC35

tetradic

#357BCC #CC35C7 #CC8635 #35CC3A

square

#357BCC #CC35C7 #CC8635 #35CC3A

split-complementary

#357BCC #CC3A35 #C7CC35

monochromatic

#1B406B #275E9C #357BCC #669BD8 #97BBE5

Accessibility & contrast

On white

4.32

#357BCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#357BCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BCC

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BCC	#FFFFFF	#000000	##000000
##357BCC	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5581CF

Deuteranopia (green-blind)

#3C73CA

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #357bcc;
/* rgb */ color: rgb(53, 123, 204);
/* oklch */ color: oklch(57.9% 0.143 254.2);

Tailwind

colors: {
  custom: {
    50: '#80a0dc',
    500: '#357bcc',
    950: '#000000',
  },
}

SCSS

$custom: #357bcc;
$custom-light: #80a0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#357bcc",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 204
  },
  "hsl": {
    "h": 212.185,
    "s": 59.684,
    "l": 50.392
  },
  "oklch": {
    "l": 0.57884,
    "c": 0.14316,
    "h": 254.2
  },
  "luminance": 0.19282
}

Semantic roles & 50–950 ramp

primary

#357BCC

secondary

#D0B18D

accent

#9A45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #357BCC

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

Preview Lab → · Contrast checker → · Palette generator →