#357CCB#357CCB

#357CCB is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.0% C 0.141 H 253.4°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#357CCB
RGB	rgb(53, 124, 203)
HSL	hsl(212, 59%, 50%)
HSV	hsv(212, 74%, 80%)
CMYK	cmyk(73.9%, 38.9%, 0%, 20.4%)
CIE-LAB	lab(51.25, 4.80, -47.32)
CIE-LCH	lch(51.25, 47.56, 275.79°)
OKLab	oklab(58.05% -0.0402 -0.135)
OKLCH	oklch(58.05% 0.141 253.4)
XYZ	xyz(19.4513, 19.4818, 59.2236)
Luminance	0.1948 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357CCB #CB8435

analogous

#35C7CB #357CCB #3935CB

triadic

#357CCB #CB357C #7CCB35

tetradic

#357CCB #CB35C7 #CB8435 #35CB39

square

#357CCB #CB35C7 #CB8435 #35CB39

split-complementary

#357CCB #CB3935 #C7CB35

monochromatic

#1B416A #285E9B #357CCB #669CD8 #96BBE4

Accessibility & contrast

On white

4.29

#357CCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#357CCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357CCB

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357CCB	#FFFFFF	#000000	##000000
##357CCB	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5782CE

Deuteranopia (green-blind)

#3F74C9

Tritanopia (blue-blind)

#008F9A

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #357ccb;
/* rgb */ color: rgb(53, 124, 203);
/* oklch */ color: oklch(58.0% 0.141 253.4);

Tailwind

colors: {
  custom: {
    50: '#80a1db',
    500: '#357ccb',
    950: '#000000',
  },
}

SCSS

$custom: #357ccb;
$custom-light: #80a1db;
$custom-dark: #000000;

JSON

{
  "hex": "#357ccb",
  "rgb": {
    "r": 53,
    "g": 124,
    "b": 203
  },
  "hsl": {
    "h": 211.6,
    "s": 59.055,
    "l": 50.196
  },
  "oklch": {
    "l": 0.58048,
    "c": 0.14081,
    "h": 253.4
  },
  "luminance": 0.19484
}

Semantic roles & 50–950 ramp

primary

#357CCB

secondary

#CFB08C

accent

#9846E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #357CCB

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

Preview Lab → · Contrast checker → · Palette generator →