#4078BF#4078BF

#4078BF is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.8% C 0.125 H 255.4°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4078BF
RGB	rgb(64, 120, 191)
HSL	hsl(214, 50%, 50%)
HSV	hsv(214, 66%, 75%)
CMYK	cmyk(66.5%, 37.2%, 0%, 25.1%)
CIE-LAB	lab(49.84, 4.58, -42.67)
CIE-LCH	lch(49.84, 42.91, 276.12°)
OKLab	oklab(56.85% -0.0317 -0.1212)
OKLCH	oklch(56.85% 0.125 255.4)
XYZ	xyz(18.2314, 18.2827, 51.8482)
Luminance	0.1829 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078BF #BF8740

analogous

#40B8BF #4078BF #4740BF

triadic

#4078BF #BF4078 #78BF40

tetradic

#4078BF #BF40B8 #BF8740 #40BF47

square

#4078BF #BF40B8 #BF8740 #40BF47

split-complementary

#4078BF #BF4740 #B8BF40

monochromatic

#213E63 #315B91 #4078BF #6E98CE #9CB9DE

Accessibility & contrast

On white

4.51

#4078BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#4078BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4078BF

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078BF	#FFFFFF	#000000	##000000
##4078BF	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#597DC2

Deuteranopia (green-blind)

#4671BE

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4078bf;
/* rgb */ color: rgb(64, 120, 191);
/* oklch */ color: oklch(56.8% 0.125 255.4);

Tailwind

colors: {
  custom: {
    50: '#829ed2',
    500: '#4078bf',
    950: '#000000',
  },
}

SCSS

$custom: #4078bf;
$custom-light: #829ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#4078bf",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 191
  },
  "hsl": {
    "h": 213.543,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.56847,
    "c": 0.12531,
    "h": 255.4
  },
  "luminance": 0.18285
}

Semantic roles & 50–950 ramp

primary

#4078BF

secondary

#CAB191

accent

#9C4ED9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4078BF

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

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