#337CAF#337CAF

#337CAF is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.4% C 0.107 H 242.6°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#337CAF
RGB	rgb(51, 124, 175)
HSL	hsl(205, 55%, 44%)
HSV	hsv(205, 71%, 69%)
CMYK	cmyk(70.9%, 29.1%, 0%, 31.4%)
CIE-LAB	lab(49.75, -5.58, -33.60)
CIE-LCH	lch(49.75, 34.06, 260.57°)
OKLab	oklab(56.39% -0.0492 -0.0949)
OKLCH	oklch(56.39% 0.107 242.6)
XYZ	xyz(16.3078, 18.2125, 43.2050)
Luminance	0.1821 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337CAF #AF6633

analogous

#33AFA4 #337CAF #333EAF

triadic

#337CAF #AF337C #7CAF33

tetradic

#337CAF #A433AF #AF6633 #3EAF33

square

#337CAF #A433AF #AF6633 #3EAF33

split-complementary

#337CAF #AF333E #AFA433

monochromatic

#173950 #255A80 #337CAF #529ACD #82B6DB

Accessibility & contrast

On white

4.52

#337CAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#337CAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CAF

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337CAF	#FFFFFF	#000000	##000000
##337CAF	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657DB1

Deuteranopia (green-blind)

#5471AE

Tritanopia (blue-blind)

#00898E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337caf;
/* rgb */ color: rgb(51, 124, 175);
/* oklch */ color: oklch(56.4% 0.107 242.6);

Tailwind

colors: {
  custom: {
    50: '#7aa1c7',
    500: '#337caf',
    950: '#000000',
  },
}

SCSS

$custom: #337caf;
$custom-light: #7aa1c7;
$custom-dark: #000000;

JSON

{
  "hex": "#337caf",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 175
  },
  "hsl": {
    "h": 204.677,
    "s": 54.867,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56389,
    "c": 0.10691,
    "h": 242.6
  },
  "luminance": 0.18214
}

Semantic roles & 50–950 ramp

primary

#337CAF

secondary

#C4987A

accent

#874ADE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #337CAF

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

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