#4390DD#4390DD

#4390DD is a light, vivid cyan. Relative luminance 0.264; OKLCH L 64.1% C 0.139 H 250.9°. Best body text is #000000 at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#4390DD
RGB	rgb(67, 144, 221)
HSL	hsl(210, 69%, 56%)
HSV	hsv(210, 70%, 87%)
CMYK	cmyk(69.7%, 34.8%, 0%, 13.3%)
CIE-LAB	lab(58.37, 1.20, -46.13)
CIE-LCH	lch(58.37, 46.14, 271.49°)
OKLab	oklab(64.06% -0.0454 -0.131)
OKLCH	oklch(64.06% 0.139 250.9)
XYZ	xyz(25.3343, 26.3575, 72.1449)
Luminance	0.2636 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4390DD #DD9043

analogous

#43DDDD #4390DD #4343DD

triadic

#4390DD #DD4390 #90DD43

tetradic

#4390DD #DD43DD #DD9043 #43DD43

square

#4390DD #DD43DD #DD9043 #43DD43

split-complementary

#4390DD #DD4343 #DDDD43

monochromatic

#19538C #2371C0 #4390DD #77AFE6 #ABCDF0

Accessibility & contrast

On white

3.35

#4390DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.27

#4390DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4390DD

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4390DD	#FFFFFF	#000000	##000000
##4390DD	1.00	3.35	6.27	6.27
#FFFFFF	3.35	1.00	21.00	21.00
#000000	6.27	21.00	1.00	1.00
##000000	6.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D94E0

Deuteranopia (green-blind)

#5786DB

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #4390dd;
/* rgb */ color: rgb(67, 144, 221);
/* oklch */ color: oklch(64.1% 0.139 250.9);

Tailwind

colors: {
  custom: {
    50: '#88b0e8',
    500: '#4390dd',
    950: '#000000',
  },
}

SCSS

$custom: #4390dd;
$custom-light: #88b0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4390dd",
  "rgb": {
    "r": 67,
    "g": 144,
    "b": 221
  },
  "hsl": {
    "h": 210,
    "s": 69.369,
    "l": 56.471
  },
  "oklch": {
    "l": 0.64058,
    "c": 0.13865,
    "h": 250.9
  },
  "luminance": 0.2636
}

Semantic roles & 50–950 ramp

primary

#4390DD

secondary

#DEBE9E

accent

#943CEC

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4390DD

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

Preview Lab → · Contrast checker → · Palette generator →