#3151C8#3151C8

#3151C8 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.6% C 0.189 H 267.3°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#3151C8
RGB	rgb(49, 81, 200)
HSL	hsl(227, 61%, 49%)
HSV	hsv(227, 76%, 78%)
CMYK	cmyk(75.5%, 59.5%, 0%, 21.6%)
CIE-LAB	lab(39.08, 30.55, -65.20)
CIE-LCH	lch(39.08, 72.00, 295.10°)
OKLab	oklab(48.64% -0.0089 -0.1883)
OKLCH	oklch(48.64% 0.189 267.3)
XYZ	xyz(14.6307, 10.7063, 55.9278)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3151C8 #C8A831

analogous

#319DC8 #3151C8 #5D31C8

triadic

#3151C8 #C83151 #51C831

tetradic

#3151C8 #C8319D #C8A831 #31C85D

square

#3151C8 #C8319D #C8A831 #31C85D

split-complementary

#3151C8 #C85D31 #9DC831

monochromatic

#192966 #253D97 #3151C8 #5F78D8 #90A1E4

Accessibility & contrast

On white

6.68

#3151C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3151C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3151C8

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3151C8	#FFFFFF	#000000	##FFFFFF
##3151C8	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CC

Deuteranopia (green-blind)

#0055C6

Tritanopia (blue-blind)

#006F84

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3151c8;
/* rgb */ color: rgb(49, 81, 200);
/* oklch */ color: oklch(48.6% 0.189 267.3);

Tailwind

colors: {
  custom: {
    50: '#7f81da',
    500: '#3151c8',
    950: '#000000',
  },
}

SCSS

$custom: #3151c8;
$custom-light: #7f81da;
$custom-dark: #000000;

JSON

{
  "hex": "#3151c8",
  "rgb": {
    "r": 49,
    "g": 81,
    "b": 200
  },
  "hsl": {
    "h": 227.285,
    "s": 60.643,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48643,
    "c": 0.18855,
    "h": 267.3
  },
  "luminance": 0.10708
}

Semantic roles & 50–950 ramp

primary

#3151C8

secondary

#CEBF86

accent

#C244E4

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3151C8

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

Preview Lab → · Contrast checker → · Palette generator →