#357CB3#357CB3

#357CB3 is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.7% C 0.111 H 245.1°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#357CB3
RGB	rgb(53, 124, 179)
HSL	hsl(206, 54%, 45%)
HSV	hsv(206, 70%, 70%)
CMYK	cmyk(70.4%, 30.7%, 0%, 29.8%)
CIE-LAB	lab(50.01, -3.86, -35.51)
CIE-LCH	lch(50.01, 35.72, 263.80°)
OKLab	oklab(56.67% -0.0467 -0.1004)
OKLCH	oklch(56.67% 0.111 245.1)
XYZ	xyz(16.8094, 18.4250, 45.3096)
Luminance	0.1843 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357CB3 #B36C35

analogous

#35B3AB #357CB3 #353DB3

triadic

#357CB3 #B3357C #7CB335

tetradic

#357CB3 #AB35B3 #B36C35 #3DB335

square

#357CB3 #AB35B3 #B36C35 #3DB335

split-complementary

#357CB3 #B3353D #B3AB35

monochromatic

#193B55 #275B84 #357CB3 #589ACD #87B7DB

Accessibility & contrast

On white

4.48

#357CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#357CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357CB3

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357CB3	#FFFFFF	#000000	##000000
##357CB3	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637EB5

Deuteranopia (green-blind)

#5272B2

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #357cb3;
/* rgb */ color: rgb(53, 124, 179);
/* oklch */ color: oklch(56.7% 0.111 245.1);

Tailwind

colors: {
  custom: {
    50: '#7ba1ca',
    500: '#357cb3',
    950: '#000000',
  },
}

SCSS

$custom: #357cb3;
$custom-light: #7ba1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#357cb3",
  "rgb": {
    "r": 53,
    "g": 124,
    "b": 179
  },
  "hsl": {
    "h": 206.19,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56671,
    "c": 0.11077,
    "h": 245.1
  },
  "luminance": 0.18427
}

Semantic roles & 50–950 ramp

primary

#357CB3

secondary

#C59D7F

accent

#8B4ADE

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #357CB3

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

Preview Lab → · Contrast checker → · Palette generator →