#357DB3#357DB3

#357DB3 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.9% C 0.110 H 244.3°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#357DB3
RGB	rgb(53, 125, 179)
HSL	hsl(206, 54%, 45%)
HSV	hsv(206, 70%, 70%)
CMYK	cmyk(70.4%, 30.2%, 0%, 29.8%)
CIE-LAB	lab(50.31, -4.45, -35.04)
CIE-LCH	lch(50.31, 35.32, 262.76°)
OKLab	oklab(56.91% -0.0477 -0.0991)
OKLCH	oklch(56.91% 0.11 244.3)
XYZ	xyz(16.9354, 18.6769, 45.3516)
Luminance	0.1868 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357DB3 #B36B35

analogous

#35B3AA #357DB3 #353EB3

triadic

#357DB3 #B3357D #7DB335

tetradic

#357DB3 #AA35B3 #B36B35 #3EB335

square

#357DB3 #AA35B3 #B36B35 #3EB335

split-complementary

#357DB3 #B3353E #B3AA35

monochromatic

#193B55 #275C84 #357DB3 #589BCD #87B7DB

Accessibility & contrast

On white

4.43

#357DB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#357DB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357DB3

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357DB3	#FFFFFF	#000000	##000000
##357DB3	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657EB5

Deuteranopia (green-blind)

#5372B2

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #357db3;
/* rgb */ color: rgb(53, 125, 179);
/* oklch */ color: oklch(56.9% 0.110 244.3);

Tailwind

colors: {
  custom: {
    50: '#7ba2ca',
    500: '#357db3',
    950: '#000000',
  },
}

SCSS

$custom: #357db3;
$custom-light: #7ba2ca;
$custom-dark: #000000;

JSON

{
  "hex": "#357db3",
  "rgb": {
    "r": 53,
    "g": 125,
    "b": 179
  },
  "hsl": {
    "h": 205.714,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56908,
    "c": 0.10996,
    "h": 244.3
  },
  "luminance": 0.18679
}

Semantic roles & 50–950 ramp

primary

#357DB3

secondary

#C59D7F

accent

#894ADE

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #357DB3

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

Preview Lab → · Contrast checker → · Palette generator →