#338BB1#338BB1

#338BB1 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.1% C 0.100 H 230.5°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#338BB1
RGB	rgb(51, 139, 177)
HSL	hsl(198, 55%, 45%)
HSV	hsv(198, 71%, 69%)
CMYK	cmyk(71.2%, 21.5%, 0%, 30.6%)
CIE-LAB	lab(54.39, -13.47, -27.53)
CIE-LCH	lch(54.39, 30.65, 243.93°)
OKLab	oklab(60.1% -0.0638 -0.0773)
OKLCH	oklch(60.1% 0.1 230.5)
XYZ	xyz(18.5305, 22.3413, 44.9221)
Luminance	0.2234 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#338BB1 #B15933

analogous

#33B198 #338BB1 #334CB1

triadic

#338BB1 #B1338B #8BB133

tetradic

#338BB1 #9833B1 #B15933 #4CB133

square

#338BB1 #9833B1 #B15933 #4CB133

split-complementary

#338BB1 #B1334C #B19833

monochromatic

#184052 #256681 #338BB1 #54A9CE #83C1DB

Accessibility & contrast

On white

3.84

#338BB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#338BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #338BB1

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##338BB1	#FFFFFF	#000000	##000000
##338BB1	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7889B3

Deuteranopia (green-blind)

#667DB0

Tritanopia (blue-blind)

#009598

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #338bb1;
/* rgb */ color: rgb(51, 139, 177);
/* oklch */ color: oklch(60.1% 0.100 230.5);

Tailwind

colors: {
  custom: {
    50: '#7bacc8',
    500: '#338bb1',
    950: '#000000',
  },
}

SCSS

$custom: #338bb1;
$custom-light: #7bacc8;
$custom-dark: #000000;

JSON

{
  "hex": "#338bb1",
  "rgb": {
    "r": 51,
    "g": 139,
    "b": 177
  },
  "hsl": {
    "h": 198.095,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.60101,
    "c": 0.10017,
    "h": 230.5
  },
  "luminance": 0.22343
}

Semantic roles & 50–950 ramp

primary

#338BB1

secondary

#C5917B

accent

#7649DF

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #338BB1

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

Preview Lab → · Contrast checker → · Palette generator →