#337FBD#337FBD

#337FBD is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 57.9% C 0.121 H 246.7°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#337FBD
RGB	rgb(51, 127, 189)
HSL	hsl(207, 58%, 47%)
HSV	hsv(207, 73%, 74%)
CMYK	cmyk(73%, 32.8%, 0%, 25.9%)
CIE-LAB	lab(51.33, -2.36, -39.19)
CIE-LCH	lch(51.33, 39.26, 266.55°)
OKLab	oklab(57.86% -0.0479 -0.1111)
OKLCH	oklch(57.86% 0.121 246.7)
XYZ	xyz(18.1364, 19.5546, 50.9528)
Luminance	0.1956 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337FBD #BD7133

analogous

#33BDB6 #337FBD #333ABD

triadic

#337FBD #BD337F #7FBD33

tetradic

#337FBD #B633BD #BD7133 #3ABD33

square

#337FBD #B633BD #BD7133 #3ABD33

split-complementary

#337FBD #BD333A #BDB633

monochromatic

#193E5D #265F8D #337FBD #5B9DD3 #8BBAE0

Accessibility & contrast

On white

4.28

#337FBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#337FBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337FBD

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337FBD	#FFFFFF	#000000	##000000
##337FBD	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6381C0

Deuteranopia (green-blind)

#4F74BC

Tritanopia (blue-blind)

#008E95

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337fbd;
/* rgb */ color: rgb(51, 127, 189);
/* oklch */ color: oklch(57.9% 0.121 246.7);

Tailwind

colors: {
  custom: {
    50: '#7ca3d1',
    500: '#337fbd',
    950: '#000000',
  },
}

SCSS

$custom: #337fbd;
$custom-light: #7ca3d1;
$custom-dark: #000000;

JSON

{
  "hex": "#337fbd",
  "rgb": {
    "r": 51,
    "g": 127,
    "b": 189
  },
  "hsl": {
    "h": 206.957,
    "s": 57.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57857,
    "c": 0.12102,
    "h": 246.7
  },
  "luminance": 0.19557
}

Semantic roles & 50–950 ramp

primary

#337FBD

secondary

#CAA282

accent

#8C47E1

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #337FBD

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

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