#337FB8#337FB8

#337FB8 is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.6% C 0.115 H 244.6°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#337FB8
RGB	rgb(51, 127, 184)
HSL	hsl(206, 57%, 46%)
HSV	hsv(206, 72%, 72%)
CMYK	cmyk(72.3%, 31%, 0%, 27.8%)
CIE-LAB	lab(51.08, -4.15, -36.70)
CIE-LCH	lch(51.08, 36.94, 263.55°)
OKLab	oklab(57.58% -0.0494 -0.1039)
OKLCH	oklch(57.58% 0.115 244.6)
XYZ	xyz(17.6030, 19.3413, 48.1436)
Luminance	0.1934 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FB8 #B86C33

analogous

#33B8AE #337FB8 #333CB8

triadic

#337FB8 #B8337F #7FB833

tetradic

#337FB8 #AE33B8 #B86C33 #3CB833

square

#337FB8 #AE33B8 #B86C33 #3CB833

split-complementary

#337FB8 #B8333C #B8AE33

monochromatic

#183D58 #265E88 #337FB8 #589DD1 #88B9DE

Accessibility & contrast

On white

4.31

#337FB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#337FB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FB8

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FB8	#FFFFFF	#000000	##000000
##337FB8	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6581BA

Deuteranopia (green-blind)

#5374B7

Tritanopia (blue-blind)

#008D93

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337fb8;
/* rgb */ color: rgb(51, 127, 184);
/* oklch */ color: oklch(57.6% 0.115 244.6);

Tailwind

colors: {
  custom: {
    50: '#7ba3cd',
    500: '#337fb8',
    950: '#000000',
  },
}

SCSS

$custom: #337fb8;
$custom-light: #7ba3cd;
$custom-dark: #000000;

JSON

{
  "hex": "#337fb8",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 184
  },
  "hsl": {
    "h": 205.714,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57583,
    "c": 0.11504,
    "h": 244.6
  },
  "luminance": 0.19343
}

Semantic roles & 50–950 ramp

primary

#337FB8

secondary

#C89E7F

accent

#8948E0

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #337FB8

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

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