#338FB5#338FB5

#338FB5 is a mid, moderate cyan. Relative luminance 0.237; OKLCH L 61.3% C 0.102 H 229.5°. Best body text is #000000 at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#338FB5
RGB	rgb(51, 143, 181)
HSL	hsl(198, 56%, 45%)
HSV	hsv(198, 72%, 71%)
CMYK	cmyk(71.8%, 21%, 0%, 29%)
CIE-LAB	lab(55.77, -14.33, -27.68)
CIE-LCH	lch(55.77, 31.17, 242.63°)
OKLab	oklab(61.26% -0.0664 -0.0776)
OKLCH	oklch(61.26% 0.102 229.5)
XYZ	xyz(19.5248, 23.6827, 47.2493)
Luminance	0.2369 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#338FB5 #B55933

analogous

#33B59A #338FB5 #334EB5

triadic

#338FB5 #B5338F #8FB533

tetradic

#338FB5 #9A33B5 #B55933 #4EB533

square

#338FB5 #9A33B5 #B55933 #4EB533

split-complementary

#338FB5 #B5334E #B59A33

monochromatic

#184456 #266985 #338FB5 #56ACCF #86C3DD

Accessibility & contrast

On white

3.66

#338FB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.74

#338FB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #338FB5

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##338FB5	#FFFFFF	#000000	##000000
##338FB5	1.00	3.66	5.74	5.74
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.74	21.00	1.00	1.00
##000000	5.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8DB7

Deuteranopia (green-blind)

#6A80B4

Tritanopia (blue-blind)

#009A9C

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #338fb5;
/* rgb */ color: rgb(51, 143, 181);
/* oklch */ color: oklch(61.3% 0.102 229.5);

Tailwind

colors: {
  custom: {
    50: '#7cafcb',
    500: '#338fb5',
    950: '#000000',
  },
}

SCSS

$custom: #338fb5;
$custom-light: #7cafcb;
$custom-dark: #000000;

JSON

{
  "hex": "#338fb5",
  "rgb": {
    "r": 51,
    "g": 143,
    "b": 181
  },
  "hsl": {
    "h": 197.538,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.61259,
    "c": 0.10214,
    "h": 229.5
  },
  "luminance": 0.23685
}

Semantic roles & 50–950 ramp

primary

#338FB5

secondary

#C6937D

accent

#7548DF

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #338FB5

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

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