#337ADB#337ADB

#337ADB is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 58.6% C 0.164 H 257.2°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#337ADB
RGB	rgb(51, 122, 219)
HSL	hsl(215, 70%, 53%)
HSV	hsv(215, 77%, 86%)
CMYK	cmyk(76.7%, 44.3%, 0%, 14.1%)
CIE-LAB	lab(51.54, 11.68, -55.93)
CIE-LCH	lch(51.54, 57.13, 281.79°)
OKLab	oklab(58.55% -0.0363 -0.1603)
OKLCH	oklch(58.55% 0.164 257.2)
XYZ	xyz(21.1063, 19.7349, 69.7009)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337ADB #DB9433

analogous

#33CEDB #337ADB #4033DB

triadic

#337ADB #DB337A #7ADB33

tetradic

#337ADB #DB33CE #DB9433 #33DB40

square

#337ADB #DB33CE #DB9433 #33DB40

split-complementary

#337ADB #DB4033 #CEDB33

monochromatic

#16427D #1F5DB1 #337ADB #679CE4 #9BBEED

Accessibility & contrast

On white

4.24

#337ADB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#337ADB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337ADB

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337ADB	#FFFFFF	#000000	##000000
##337ADB	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4883DF

Deuteranopia (green-blind)

#2574D9

Tritanopia (blue-blind)

#0091A0

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #337adb;
/* rgb */ color: rgb(51, 122, 219);
/* oklch */ color: oklch(58.6% 0.164 257.2);

Tailwind

colors: {
  custom: {
    50: '#829fe7',
    500: '#337adb',
    950: '#000000',
  },
}

SCSS

$custom: #337adb;
$custom-light: #829fe7;
$custom-dark: #000000;

JSON

{
  "hex": "#337adb",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 219
  },
  "hsl": {
    "h": 214.643,
    "s": 70,
    "l": 52.941
  },
  "oklch": {
    "l": 0.58553,
    "c": 0.16437,
    "h": 257.2
  },
  "luminance": 0.19737
}

Semantic roles & 50–950 ramp

primary

#337ADB

secondary

#D9BB91

accent

#A23BED

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #337ADB

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

Preview Lab → · Contrast checker → · Palette generator →