#3151CA#3151CA

#3151CA is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.8% C 0.191 H 267.3°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#3151CA
RGB	rgb(49, 81, 202)
HSL	hsl(227, 61%, 49%)
HSV	hsv(227, 76%, 79%)
CMYK	cmyk(75.7%, 59.9%, 0%, 20.8%)
CIE-LAB	lab(39.24, 31.28, -66.10)
CIE-LCH	lch(39.24, 73.13, 295.33°)
OKLab	oklab(48.81% -0.0089 -0.191)
OKLCH	oklch(48.81% 0.191 267.3)
XYZ	xyz(14.8660, 10.8004, 57.1669)
Luminance	0.1080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3151CA #CAAA31

analogous

#319ECA #3151CA #5E31CA

triadic

#3151CA #CA3151 #51CA31

tetradic

#3151CA #CA319E #CAAA31 #31CA5E

square

#3151CA #CA319E #CAAA31 #31CA5E

split-complementary

#3151CA #CA5E31 #9ECA31

monochromatic

#192A67 #253D99 #3151CA #6079D8 #91A2E4

Accessibility & contrast

On white

6.64

#3151CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3151CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3151CA

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3151CA	#FFFFFF	#000000	##FFFFFF
##3151CA	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064CE

Deuteranopia (green-blind)

#0055C8

Tritanopia (blue-blind)

#007086

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3151ca;
/* rgb */ color: rgb(49, 81, 202);
/* oklch */ color: oklch(48.8% 0.191 267.3);

Tailwind

colors: {
  custom: {
    50: '#8081db',
    500: '#3151ca',
    950: '#000000',
  },
}

SCSS

$custom: #3151ca;
$custom-light: #8081db;
$custom-dark: #000000;

JSON

{
  "hex": "#3151ca",
  "rgb": {
    "r": 49,
    "g": 81,
    "b": 202
  },
  "hsl": {
    "h": 227.451,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48813,
    "c": 0.19118,
    "h": 267.3
  },
  "luminance": 0.10802
}

Semantic roles & 50–950 ramp

primary

#3151CA

secondary

#CFC088

accent

#C344E4

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3151CA

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

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