#4390D4#4390D4

#4390D4 is a light, vivid cyan. Relative luminance 0.259; OKLCH L 63.6% C 0.128 H 248.0°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#4390D4
RGB	rgb(67, 144, 212)
HSL	hsl(208, 63%, 55%)
HSV	hsv(208, 68%, 83%)
CMYK	cmyk(68.4%, 32.1%, 0%, 16.9%)
CIE-LAB	lab(57.93, -1.92, -41.79)
CIE-LCH	lch(57.93, 41.83, 267.38°)
OKLab	oklab(63.57% -0.0479 -0.1183)
OKLCH	oklch(63.57% 0.128 248)
XYZ	xyz(24.1672, 25.8907, 65.9983)
Luminance	0.2589 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4390D4 #D48743

analogous

#43D4D0 #4390D4 #4347D4

triadic

#4390D4 #D44390 #90D443

tetradic

#4390D4 #D043D4 #D48743 #47D443

square

#4390D4 #D043D4 #D48743 #47D443

split-complementary

#4390D4 #D44347 #D4D043

monochromatic

#1D517F #2971B1 #4390D4 #75ADDF #A7CBEB

Accessibility & contrast

On white

3.40

#4390D4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#4390D4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4390D4

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4390D4	#FFFFFF	#000000	##000000
##4390D4	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7293D7

Deuteranopia (green-blind)

#5D85D3

Tritanopia (blue-blind)

#00A0A8

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4390d4;
/* rgb */ color: rgb(67, 144, 212);
/* oklch */ color: oklch(63.6% 0.128 248.0);

Tailwind

colors: {
  custom: {
    50: '#87b0e1',
    500: '#4390d4',
    950: '#000000',
  },
}

SCSS

$custom: #4390d4;
$custom-light: #87b0e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4390d4",
  "rgb": {
    "r": 67,
    "g": 144,
    "b": 212
  },
  "hsl": {
    "h": 208.138,
    "s": 62.771,
    "l": 54.706
  },
  "oklch": {
    "l": 0.63567,
    "c": 0.12766,
    "h": 248
  },
  "luminance": 0.25893
}

Semantic roles & 50–950 ramp

primary

#4390D4

secondary

#D8B89B

accent

#8F42E6

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4390D4

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

Preview Lab → · Contrast checker → · Palette generator →