#4578BF#4578BF

#4578BF is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.1% C 0.123 H 257.0°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4578BF
RGB	rgb(69, 120, 191)
HSL	hsl(215, 49%, 51%)
HSV	hsv(215, 64%, 75%)
CMYK	cmyk(63.9%, 37.2%, 0%, 25.1%)
CIE-LAB	lab(50.05, 5.45, -42.32)
CIE-LCH	lch(50.05, 42.67, 277.34°)
OKLab	oklab(57.07% -0.0277 -0.1202)
OKLCH	oklch(57.07% 0.123 257)
XYZ	xyz(18.5713, 18.4580, 51.8642)
Luminance	0.1846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4578BF #BF8C45

analogous

#45B5BF #4578BF #4F45BF

triadic

#4578BF #BF4578 #78BF45

tetradic

#4578BF #BF45B5 #BF8C45 #45BF4F

square

#4578BF #BF45B5 #BF8C45 #45BF4F

split-complementary

#4578BF #BF4F45 #B5BF45

monochromatic

#233F66 #335B94 #4578BF #7399CF #A0BADE

Accessibility & contrast

On white

4.48

#4578BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#4578BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4578BF

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4578BF	#FFFFFF	#000000	##000000
##4578BF	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#597DC2

Deuteranopia (green-blind)

#4872BE

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4578bf;
/* rgb */ color: rgb(69, 120, 191);
/* oklch */ color: oklch(57.1% 0.123 257.0);

Tailwind

colors: {
  custom: {
    50: '#849ed2',
    500: '#4578bf',
    950: '#000000',
  },
}

SCSS

$custom: #4578bf;
$custom-light: #849ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#4578bf",
  "rgb": {
    "r": 69,
    "g": 120,
    "b": 191
  },
  "hsl": {
    "h": 214.918,
    "s": 48.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57069,
    "c": 0.12332,
    "h": 257
  },
  "luminance": 0.1846
}

Semantic roles & 50–950 ramp

primary

#4578BF

secondary

#CBB495

accent

#9F4FD8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4578BF

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

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