#357BB8#357BB8

#357BB8 is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.7% C 0.118 H 247.9°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#357BB8
RGB	rgb(53, 123, 184)
HSL	hsl(208, 55%, 46%)
HSV	hsv(208, 71%, 72%)
CMYK	cmyk(71.2%, 33.2%, 0%, 27.8%)
CIE-LAB	lab(49.96, -1.48, -38.48)
CIE-LCH	lch(49.96, 38.51, 267.80°)
OKLab	oklab(56.71% -0.0442 -0.1091)
OKLCH	oklch(56.71% 0.118 247.9)
XYZ	xyz(17.1996, 18.3816, 47.9797)
Luminance	0.1838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BB8 #B87235

analogous

#35B8B4 #357BB8 #353AB8

triadic

#357BB8 #B8357B #7BB835

tetradic

#357BB8 #B435B8 #B87235 #3AB835

square

#357BB8 #B435B8 #B87235 #3AB835

split-complementary

#357BB8 #B8353A #B8B435

monochromatic

#1A3B59 #275B88 #357BB8 #5B99D0 #8AB7DD

Accessibility & contrast

On white

4.49

#357BB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#357BB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BB8

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BB8	#FFFFFF	#000000	##000000
##357BB8	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607EBB

Deuteranopia (green-blind)

#4D71B7

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #357bb8;
/* rgb */ color: rgb(53, 123, 184);
/* oklch */ color: oklch(56.7% 0.118 247.9);

Tailwind

colors: {
  custom: {
    50: '#7ca0cd',
    500: '#357bb8',
    950: '#000000',
  },
}

SCSS

$custom: #357bb8;
$custom-light: #7ca0cd;
$custom-dark: #000000;

JSON

{
  "hex": "#357bb8",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 184
  },
  "hsl": {
    "h": 207.939,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56711,
    "c": 0.11773,
    "h": 247.9
  },
  "luminance": 0.18383
}

Semantic roles & 50–950 ramp

primary

#357BB8

secondary

#C7A281

accent

#8F49DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #357BB8

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

Preview Lab → · Contrast checker → · Palette generator →