#357BB3#357BB3

#357BB3 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.4% C 0.112 H 245.8°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#357BB3
RGB	rgb(53, 123, 179)
HSL	hsl(207, 54%, 45%)
HSV	hsv(207, 70%, 70%)
CMYK	cmyk(70.4%, 31.3%, 0%, 29.8%)
CIE-LAB	lab(49.71, -3.27, -35.98)
CIE-LCH	lch(49.71, 36.13, 264.81°)
OKLab	oklab(56.44% -0.0457 -0.1018)
OKLCH	oklch(56.44% 0.112 245.8)
XYZ	xyz(16.6848, 18.1757, 45.2680)
Luminance	0.1818 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BB3 #B36D35

analogous

#35B3AC #357BB3 #353CB3

triadic

#357BB3 #B3357B #7BB335

tetradic

#357BB3 #AC35B3 #B36D35 #3CB335

square

#357BB3 #AC35B3 #B36D35 #3CB335

split-complementary

#357BB3 #B3353C #B3AC35

monochromatic

#193A55 #275B84 #357BB3 #5899CD #87B6DB

Accessibility & contrast

On white

4.53

#357BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#357BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BB3

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BB3	#FFFFFF	#000000	##000000
##357BB3	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627DB5

Deuteranopia (green-blind)

#5071B2

Tritanopia (blue-blind)

#00888F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #357bb3;
/* rgb */ color: rgb(53, 123, 179);
/* oklch */ color: oklch(56.4% 0.112 245.8);

Tailwind

colors: {
  custom: {
    50: '#7ba0ca',
    500: '#357bb3',
    950: '#000000',
  },
}

SCSS

$custom: #357bb3;
$custom-light: #7ba0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#357bb3",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 179
  },
  "hsl": {
    "h": 206.667,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56435,
    "c": 0.11161,
    "h": 245.8
  },
  "luminance": 0.18177
}

Semantic roles & 50–950 ramp

primary

#357BB3

secondary

#C59E7F

accent

#8C4ADE

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #357BB3

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

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