#357BB4#357BB4

#357BB4 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.5% C 0.113 H 246.3°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#357BB4
RGB	rgb(53, 123, 180)
HSL	hsl(207, 55%, 46%)
HSV	hsv(207, 71%, 71%)
CMYK	cmyk(70.6%, 31.7%, 0%, 29.4%)
CIE-LAB	lab(49.76, -2.91, -36.48)
CIE-LCH	lch(49.76, 36.60, 265.44°)
OKLab	oklab(56.49% -0.0454 -0.1033)
OKLCH	oklch(56.49% 0.113 246.3)
XYZ	xyz(16.7863, 18.2163, 45.8026)
Luminance	0.1822 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BB4 #B46E35

analogous

#35B4AD #357BB4 #353CB4

triadic

#357BB4 #B4357B #7BB435

tetradic

#357BB4 #AD35B4 #B46E35 #3CB435

square

#357BB4 #AD35B4 #B46E35 #3CB435

split-complementary

#357BB4 #B4353C #B4AD35

monochromatic

#193A55 #275B85 #357BB4 #5899CE #88B6DC

Accessibility & contrast

On white

4.52

#357BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#357BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BB4

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BB4	#FFFFFF	#000000	##000000
##357BB4	1.00	4.52	4.64	4.64
#FFFFFF	4.52	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)

#617DB6

Deuteranopia (green-blind)

#5071B3

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #357bb4;
/* rgb */ color: rgb(53, 123, 180);
/* oklch */ color: oklch(56.5% 0.113 246.3);

Tailwind

colors: {
  custom: {
    50: '#7ba0ca',
    500: '#357bb4',
    950: '#000000',
  },
}

SCSS

$custom: #357bb4;
$custom-light: #7ba0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#357bb4",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 180
  },
  "hsl": {
    "h": 206.929,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.5649,
    "c": 0.11282,
    "h": 246.3
  },
  "luminance": 0.18218
}

Semantic roles & 50–950 ramp

primary

#357BB4

secondary

#C69F7F

accent

#8C4ADE

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #357BB4

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

Preview Lab → · Contrast checker → · Palette generator →