#4388DD#4388DD

#4388DD is a light, vivid cyan. Relative luminance 0.240; OKLCH L 62.3% C 0.147 H 255.0°. Best body text is #000000 at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#4388DD
RGB	rgb(67, 136, 221)
HSL	hsl(213, 69%, 56%)
HSV	hsv(213, 70%, 87%)
CMYK	cmyk(69.7%, 38.5%, 0%, 13.3%)
CIE-LAB	lab(56.11, 5.95, -49.72)
CIE-LCH	lch(56.11, 50.08, 276.82°)
OKLab	oklab(62.29% -0.0379 -0.1416)
OKLCH	oklch(62.29% 0.147 255)
XYZ	xyz(24.1653, 24.0195, 71.7553)
Luminance	0.2402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4388DD #DD9843

analogous

#43D5DD #4388DD #4B43DD

triadic

#4388DD #DD4388 #88DD43

tetradic

#4388DD #DD43D5 #DD9843 #43DD4B

square

#4388DD #DD43D5 #DD9843 #43DD4B

split-complementary

#4388DD #DD4B43 #D5DD43

monochromatic

#194D8C #2369C0 #4388DD #77A9E6 #ABCAF0

Accessibility & contrast

On white

3.62

#4388DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.80

#4388DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4388DD

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4388DD	#FFFFFF	#000000	##000000
##4388DD	1.00	3.62	5.80	5.80
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.80	21.00	1.00	1.00
##000000	5.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#618EE0

Deuteranopia (green-blind)

#4A80DB

Tritanopia (blue-blind)

#009CA8

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #4388dd;
/* rgb */ color: rgb(67, 136, 221);
/* oklch */ color: oklch(62.3% 0.147 255.0);

Tailwind

colors: {
  custom: {
    50: '#88aae8',
    500: '#4388dd',
    950: '#000000',
  },
}

SCSS

$custom: #4388dd;
$custom-light: #88aae8;
$custom-dark: #000000;

JSON

{
  "hex": "#4388dd",
  "rgb": {
    "r": 67,
    "g": 136,
    "b": 221
  },
  "hsl": {
    "h": 213.117,
    "s": 69.369,
    "l": 56.471
  },
  "oklch": {
    "l": 0.62286,
    "c": 0.14662,
    "h": 255
  },
  "luminance": 0.24022
}

Semantic roles & 50–950 ramp

primary

#4388DD

secondary

#DEC19E

accent

#9D3CEC

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4388DD

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

Preview Lab → · Contrast checker → · Palette generator →