#3381B5#3381B5

#3381B5 is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 57.9% C 0.110 H 241.6°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3381B5
RGB	rgb(51, 129, 181)
HSL	hsl(204, 56%, 45%)
HSV	hsv(204, 72%, 71%)
CMYK	cmyk(71.8%, 28.7%, 0%, 29%)
CIE-LAB	lab(51.54, -6.39, -34.26)
CIE-LCH	lch(51.54, 34.85, 259.44°)
OKLab	oklab(57.9% -0.0523 -0.0968)
OKLCH	oklch(57.9% 0.11 241.6)
XYZ	xyz(17.5528, 19.7386, 46.5919)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3381B5 #B56733

analogous

#33B5A8 #3381B5 #3340B5

triadic

#3381B5 #B53381 #81B533

tetradic

#3381B5 #A833B5 #B56733 #40B533

square

#3381B5 #A833B5 #B56733 #40B533

split-complementary

#3381B5 #B53340 #B5A833

monochromatic

#183D56 #265F85 #3381B5 #569FCF #86BADD

Accessibility & contrast

On white

4.24

#3381B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#3381B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3381B5

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3381B5	#FFFFFF	#000000	##000000
##3381B5	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6982B7

Deuteranopia (green-blind)

#5775B4

Tritanopia (blue-blind)

#008E93

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3381b5;
/* rgb */ color: rgb(51, 129, 181);
/* oklch */ color: oklch(57.9% 0.110 241.6);

Tailwind

colors: {
  custom: {
    50: '#7ba5cb',
    500: '#3381b5',
    950: '#000000',
  },
}

SCSS

$custom: #3381b5;
$custom-light: #7ba5cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3381b5",
  "rgb": {
    "r": 51,
    "g": 129,
    "b": 181
  },
  "hsl": {
    "h": 204,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.57896,
    "c": 0.11001,
    "h": 241.6
  },
  "luminance": 0.19741
}

Semantic roles & 50–950 ramp

primary

#3381B5

secondary

#C69B7D

accent

#8548DF

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3381B5

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

Preview Lab → · Contrast checker → · Palette generator →