#357DCB#357DCB

#357DCB is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 58.3% C 0.140 H 252.9°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#357DCB
RGB	rgb(53, 125, 203)
HSL	hsl(211, 59%, 50%)
HSV	hsv(211, 74%, 80%)
CMYK	cmyk(73.9%, 38.4%, 0%, 20.4%)
CIE-LAB	lab(51.53, 4.19, -46.86)
CIE-LCH	lch(51.53, 47.04, 275.11°)
OKLab	oklab(58.27% -0.0411 -0.1336)
OKLCH	oklch(58.27% 0.14 252.9)
XYZ	xyz(19.5773, 19.7337, 59.2655)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357DCB #CB8335

analogous

#35C8CB #357DCB #3835CB

triadic

#357DCB #CB357D #7DCB35

tetradic

#357DCB #CB35C8 #CB8335 #35CB38

square

#357DCB #CB35C8 #CB8335 #35CB38

split-complementary

#357DCB #CB3835 #C8CB35

monochromatic

#1B416A #285F9B #357DCB #669CD8 #96BCE4

Accessibility & contrast

On white

4.24

#357DCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#357DCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357DCB

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357DCB	#FFFFFF	#000000	##000000
##357DCB	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5982CE

Deuteranopia (green-blind)

#4174C9

Tritanopia (blue-blind)

#008F9A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #357dcb;
/* rgb */ color: rgb(53, 125, 203);
/* oklch */ color: oklch(58.3% 0.140 252.9);

Tailwind

colors: {
  custom: {
    50: '#80a2db',
    500: '#357dcb',
    950: '#000000',
  },
}

SCSS

$custom: #357dcb;
$custom-light: #80a2db;
$custom-dark: #000000;

JSON

{
  "hex": "#357dcb",
  "rgb": {
    "r": 53,
    "g": 125,
    "b": 203
  },
  "hsl": {
    "h": 211.2,
    "s": 59.055,
    "l": 50.196
  },
  "oklch": {
    "l": 0.58273,
    "c": 0.13976,
    "h": 252.9
  },
  "luminance": 0.19736
}

Semantic roles & 50–950 ramp

primary

#357DCB

secondary

#CFAF8C

accent

#9746E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #357DCB

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

Preview Lab → · Contrast checker → · Palette generator →