#337AAF#337AAF

#337AAF is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.9% C 0.108 H 244.2°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#337AAF
RGB	rgb(51, 122, 175)
HSL	hsl(206, 55%, 44%)
HSV	hsv(206, 71%, 69%)
CMYK	cmyk(70.9%, 30.3%, 0%, 31.4%)
CIE-LAB	lab(49.15, -4.40, -34.55)
CIE-LCH	lch(49.15, 34.82, 262.74°)
OKLab	oklab(55.91% -0.0472 -0.0977)
OKLCH	oklch(55.91% 0.108 244.2)
XYZ	xyz(16.0597, 17.7163, 43.1223)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337AAF #AF6833

analogous

#33AFA6 #337AAF #333CAF

triadic

#337AAF #AF337A #7AAF33

tetradic

#337AAF #A633AF #AF6833 #3CAF33

square

#337AAF #A633AF #AF6833 #3CAF33

split-complementary

#337AAF #AF333C #AFA633

monochromatic

#173850 #255980 #337AAF #5298CD #82B5DB

Accessibility & contrast

On white

4.62

#337AAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#337AAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #337AAF

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337AAF	#FFFFFF	#000000	##FFFFFF
##337AAF	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627BB1

Deuteranopia (green-blind)

#516FAE

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #337aaf;
/* rgb */ color: rgb(51, 122, 175);
/* oklch */ color: oklch(55.9% 0.108 244.2);

Tailwind

colors: {
  custom: {
    50: '#7aa0c7',
    500: '#337aaf',
    950: '#000000',
  },
}

SCSS

$custom: #337aaf;
$custom-light: #7aa0c7;
$custom-dark: #000000;

JSON

{
  "hex": "#337aaf",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 175
  },
  "hsl": {
    "h": 205.645,
    "s": 54.867,
    "l": 44.314
  },
  "oklch": {
    "l": 0.55913,
    "c": 0.10849,
    "h": 244.2
  },
  "luminance": 0.17718
}

Semantic roles & 50–950 ramp

primary

#337AAF

secondary

#C49A7A

accent

#894ADE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #337AAF

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

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