#399ADB#399ADB

#399ADB is a light, vivid cyan. Relative luminance 0.291; OKLCH L 65.9% C 0.131 H 242.3°. Best body text is #000000 at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#399ADB
RGB	rgb(57, 154, 219)
HSL	hsl(204, 69%, 54%)
HSV	hsv(204, 74%, 86%)
CMYK	cmyk(74%, 29.7%, 0%, 14.1%)
CIE-LAB	lab(60.86, -6.63, -41.11)
CIE-LCH	lch(60.86, 41.64, 260.84°)
OKLab	oklab(65.9% -0.0612 -0.1164)
OKLCH	oklch(65.9% 0.131 242.3)
XYZ	xyz(26.0242, 29.0925, 71.2480)
Luminance	0.2910 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399ADB #DB7A39

analogous

#39DBCB #399ADB #3949DB

triadic

#399ADB #DB399A #9ADB39

tetradic

#399ADB #CB39DB #DB7A39 #49DB39

square

#399ADB #CB39DB #DB7A39 #49DB39

split-complementary

#399ADB #DB3949 #DBCB39

monochromatic

#185782 #217AB6 #399ADB #6DB4E4 #A1CFEE

Accessibility & contrast

On white

3.08

#399ADB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.82

#399ADB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399ADB

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399ADB	#FFFFFF	#000000	##000000
##399ADB	1.00	3.08	6.82	6.82
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.82	21.00	1.00	1.00
##000000	6.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C9BDE

Deuteranopia (green-blind)

#668CDA

Tritanopia (blue-blind)

#00AAB1

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #399adb;
/* rgb */ color: rgb(57, 154, 219);
/* oklch */ color: oklch(65.9% 0.131 242.3);

Tailwind

colors: {
  custom: {
    50: '#84b7e6',
    500: '#399adb',
    950: '#000000',
  },
}

SCSS

$custom: #399adb;
$custom-light: #84b7e6;
$custom-dark: #000000;

JSON

{
  "hex": "#399adb",
  "rgb": {
    "r": 57,
    "g": 154,
    "b": 219
  },
  "hsl": {
    "h": 204.074,
    "s": 69.231,
    "l": 54.118
  },
  "oklch": {
    "l": 0.65903,
    "c": 0.13146,
    "h": 242.3
  },
  "luminance": 0.29096
}

Semantic roles & 50–950 ramp

primary

#399ADB

secondary

#DAB195

accent

#823CEC

background

#F8FBFE

surface

#F0F6FC

border

#CBD0D5

text

#0C1116

muted

#7D8084

Preview Lab

Preview with #399ADB

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

Preview Lab → · Contrast checker → · Palette generator →