#357FCB#357FCB

#357FCB is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.7% C 0.138 H 251.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#357FCB
RGB	rgb(53, 127, 203)
HSL	hsl(210, 59%, 50%)
HSV	hsv(210, 74%, 80%)
CMYK	cmyk(73.9%, 37.4%, 0%, 20.4%)
CIE-LAB	lab(52.11, 2.97, -45.94)
CIE-LCH	lch(52.11, 46.03, 273.70°)
OKLab	oklab(58.73% -0.0429 -0.1309)
OKLCH	oklch(58.73% 0.138 251.9)
XYZ	xyz(19.8330, 20.2452, 59.3508)
Luminance	0.2025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357FCB #CB8135

analogous

#35CACB #357FCB #3635CB

triadic

#357FCB #CB357F #7FCB35

tetradic

#357FCB #CB35CA #CB8135 #35CB36

square

#357FCB #CB35CA #CB8135 #35CB36

split-complementary

#357FCB #CB3635 #CACB35

monochromatic

#1B426A #28619B #357FCB #669ED8 #96BDE4

Accessibility & contrast

On white

4.16

#357FCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#357FCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357FCB

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357FCB	#FFFFFF	#000000	##000000
##357FCB	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C84CE

Deuteranopia (green-blind)

#4576C9

Tritanopia (blue-blind)

#00919B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #357fcb;
/* rgb */ color: rgb(53, 127, 203);
/* oklch */ color: oklch(58.7% 0.138 251.9);

Tailwind

colors: {
  custom: {
    50: '#80a3db',
    500: '#357fcb',
    950: '#000000',
  },
}

SCSS

$custom: #357fcb;
$custom-light: #80a3db;
$custom-dark: #000000;

JSON

{
  "hex": "#357fcb",
  "rgb": {
    "r": 53,
    "g": 127,
    "b": 203
  },
  "hsl": {
    "h": 210.4,
    "s": 59.055,
    "l": 50.196
  },
  "oklch": {
    "l": 0.58725,
    "c": 0.13772,
    "h": 251.9
  },
  "luminance": 0.20247
}

Semantic roles & 50–950 ramp

primary

#357FCB

secondary

#CFAE8C

accent

#9546E2

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #357FCB

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

Preview Lab → · Contrast checker → · Palette generator →