#399ACC#399ACC

#399ACC is a light, moderate cyan. Relative luminance 0.283; OKLCH L 65.2% C 0.116 H 235.2°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#399ACC
RGB	rgb(57, 154, 204)
HSL	hsl(200, 59%, 51%)
HSV	hsv(200, 72%, 80%)
CMYK	cmyk(72.1%, 24.5%, 0%, 20%)
CIE-LAB	lab(60.19, -11.78, -33.79)
CIE-LCH	lch(60.19, 35.78, 250.77°)
OKLab	oklab(65.15% -0.066 -0.0951)
OKLCH	oklch(65.15% 0.116 235.2)
XYZ	xyz(24.1377, 28.3379, 61.3127)
Luminance	0.2834 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399ACC #CC6B39

analogous

#39CCB4 #399ACC #3950CC

triadic

#399ACC #CC399A #9ACC39

tetradic

#399ACC #B439CC #CC6B39 #50CC39

square

#399ACC #B439CC #CC6B39 #50CC39

split-complementary

#399ACC #CC3950 #CCB439

monochromatic

#1C526E #29779F #399ACC #6AB3D9 #9ACCE5

Accessibility & contrast

On white

3.15

#399ACC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#399ACC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399ACC

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399ACC	#FFFFFF	#000000	##000000
##399ACC	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8299CE

Deuteranopia (green-blind)

#6E8BCB

Tritanopia (blue-blind)

#00A7AB

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #399acc;
/* rgb */ color: rgb(57, 154, 204);
/* oklch */ color: oklch(65.2% 0.116 235.2);

Tailwind

colors: {
  custom: {
    50: '#82b7db',
    500: '#399acc',
    950: '#000000',
  },
}

SCSS

$custom: #399acc;
$custom-light: #82b7db;
$custom-dark: #000000;

JSON

{
  "hex": "#399acc",
  "rgb": {
    "r": 57,
    "g": 154,
    "b": 204
  },
  "hsl": {
    "h": 200.408,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.65151,
    "c": 0.11579,
    "h": 235.2
  },
  "luminance": 0.28341
}

Semantic roles & 50–950 ramp

primary

#399ACC

secondary

#D1A690

accent

#7B46E2

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #399ACC

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

Preview Lab → · Contrast checker → · Palette generator →