#357BB1#357BB1

#357BB1 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.3% C 0.109 H 244.9°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#357BB1
RGB	rgb(53, 123, 177)
HSL	hsl(206, 54%, 45%)
HSV	hsv(206, 70%, 69%)
CMYK	cmyk(70.1%, 30.5%, 0%, 30.6%)
CIE-LAB	lab(49.61, -3.98, -34.98)
CIE-LCH	lch(49.61, 35.20, 263.52°)
OKLab	oklab(56.33% -0.0463 -0.0989)
OKLCH	oklch(56.33% 0.109 244.9)
XYZ	xyz(16.4839, 18.0953, 44.2105)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BB1 #B16B35

analogous

#35B1A9 #357BB1 #353DB1

triadic

#357BB1 #B1357B #7BB135

tetradic

#357BB1 #A935B1 #B16B35 #3DB135

square

#357BB1 #A935B1 #B16B35 #3DB135

split-complementary

#357BB1 #B1353D #B1A935

monochromatic

#193A53 #275A82 #357BB1 #5799CD #86B6DB

Accessibility & contrast

On white

4.55

#357BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#357BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BB1

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BB1	#FFFFFF	#000000	##000000
##357BB1	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637DB3

Deuteranopia (green-blind)

#5171B0

Tritanopia (blue-blind)

#00888E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #357bb1;
/* rgb */ color: rgb(53, 123, 177);
/* oklch */ color: oklch(56.3% 0.109 244.9);

Tailwind

colors: {
  custom: {
    50: '#7ba1c8',
    500: '#357bb1',
    950: '#000000',
  },
}

SCSS

$custom: #357bb1;
$custom-light: #7ba1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#357bb1",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 177
  },
  "hsl": {
    "h": 206.129,
    "s": 53.913,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56327,
    "c": 0.10921,
    "h": 244.9
  },
  "luminance": 0.18097
}

Semantic roles & 50–950 ramp

primary

#357BB1

secondary

#C49C7D

accent

#8A4BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #357BB1

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

Preview Lab → · Contrast checker → · Palette generator →