#338FBB#338FBB

#338FBB is a mid, moderate cyan. Relative luminance 0.239; OKLCH L 61.5% C 0.108 H 233.4°. Best body text is #000000 at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#338FBB
RGB	rgb(51, 143, 187)
HSL	hsl(199, 57%, 47%)
HSV	hsv(199, 73%, 73%)
CMYK	cmyk(72.7%, 23.5%, 0%, 26.7%)
CIE-LAB	lab(56.02, -12.28, -30.70)
CIE-LCH	lch(56.02, 33.07, 248.19°)
OKLab	oklab(61.54% -0.0642 -0.0863)
OKLCH	oklch(61.54% 0.108 233.4)
XYZ	xyz(20.1538, 23.9343, 50.5617)
Luminance	0.2394 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#338FBB #BB5F33

analogous

#33BBA3 #338FBB #334BBB

triadic

#338FBB #BB338F #8FBB33

tetradic

#338FBB #A333BB #BB5F33 #4BBB33

square

#338FBB #A333BB #BB5F33 #4BBB33

split-complementary

#338FBB #BB334B #BBA333

monochromatic

#19455B #266A8B #338FBB #59ABD2 #89C3DF

Accessibility & contrast

On white

3.63

#338FBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.79

#338FBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #338FBB

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##338FBB	#FFFFFF	#000000	##000000
##338FBB	1.00	3.63	5.79	5.79
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.79	21.00	1.00	1.00
##000000	5.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798EBD

Deuteranopia (green-blind)

#6780BA

Tritanopia (blue-blind)

#009B9E

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #338fbb;
/* rgb */ color: rgb(51, 143, 187);
/* oklch */ color: oklch(61.5% 0.108 233.4);

Tailwind

colors: {
  custom: {
    50: '#7dafcf',
    500: '#338fbb',
    950: '#000000',
  },
}

SCSS

$custom: #338fbb;
$custom-light: #7dafcf;
$custom-dark: #000000;

JSON

{
  "hex": "#338fbb",
  "rgb": {
    "r": 51,
    "g": 143,
    "b": 187
  },
  "hsl": {
    "h": 199.412,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.61544,
    "c": 0.10759,
    "h": 233.4
  },
  "luminance": 0.23937
}

Semantic roles & 50–950 ramp

primary

#338FBB

secondary

#C99881

accent

#7947E0

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #338FBB

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

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