#337CCA#337CCA

#337CCA is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 57.9% C 0.140 H 252.7°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#337CCA
RGB	rgb(51, 124, 202)
HSL	hsl(211, 60%, 50%)
HSV	hsv(211, 75%, 79%)
CMYK	cmyk(74.8%, 38.6%, 0%, 20.8%)
CIE-LAB	lab(51.13, 4.17, -46.93)
CIE-LCH	lch(51.13, 47.12, 275.08°)
OKLab	oklab(57.92% -0.0416 -0.1339)
OKLCH	oklch(57.92% 0.14 252.7)
XYZ	xyz(19.2296, 19.3812, 58.5931)
Luminance	0.1938 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CCA #CA8133

analogous

#33C8CA #337CCA #3533CA

triadic

#337CCA #CA337C #7CCA33

tetradic

#337CCA #CA33C8 #CA8133 #33CA35

square

#337CCA #CA33C8 #CA8133 #33CA35

split-complementary

#337CCA #CA3533 #C8CA33

monochromatic

#1A4068 #275E99 #337CCA #639BD8 #94BAE4

Accessibility & contrast

On white

4.31

#337CCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#337CCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CCA

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CCA	#FFFFFF	#000000	##000000
##337CCA	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5781CD

Deuteranopia (green-blind)

#4073C8

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #337cca;
/* rgb */ color: rgb(51, 124, 202);
/* oklch */ color: oklch(57.9% 0.140 252.7);

Tailwind

colors: {
  custom: {
    50: '#7fa1da',
    500: '#337cca',
    950: '#000000',
  },
}

SCSS

$custom: #337cca;
$custom-light: #7fa1da;
$custom-dark: #000000;

JSON

{
  "hex": "#337cca",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 202
  },
  "hsl": {
    "h": 210.993,
    "s": 59.684,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57922,
    "c": 0.14018,
    "h": 252.7
  },
  "luminance": 0.19383
}

Semantic roles & 50–950 ramp

primary

#337CCA

secondary

#CFAE8A

accent

#9745E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #337CCA

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

Preview Lab → · Contrast checker → · Palette generator →