#31458F#31458F

#31458F is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.6% C 0.125 H 269.0°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#31458F
RGB	rgb(49, 69, 143)
HSL	hsl(227, 49%, 38%)
HSV	hsv(227, 66%, 56%)
CMYK	cmyk(65.7%, 51.7%, 0%, 43.9%)
CIE-LAB	lab(31.56, 17.29, -43.45)
CIE-LCH	lch(31.56, 46.77, 291.69°)
OKLab	oklab(41.64% -0.0021 -0.1246)
OKLCH	oklch(41.64% 0.125 269)
XYZ	xyz(8.3510, 6.8916, 26.8714)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31458F #8F7B31

analogous

#31748F #31458F #4C318F

triadic

#31458F #8F3145 #458F31

tetradic

#31458F #8F3174 #8F7B31 #318F4C

square

#31458F #8F3174 #8F7B31 #318F4C

split-complementary

#31458F #8F4C31 #748F31

monochromatic

#121934 #212F61 #31458F #415BBD #6D82CD

Accessibility & contrast

On white

8.83

#31458F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#31458F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31458F

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31458F	#FFFFFF	#000000	##FFFFFF
##31458F	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4F92

Deuteranopia (green-blind)

#00468D

Tritanopia (blue-blind)

#005663

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31458f;
/* rgb */ color: rgb(49, 69, 143);
/* oklch */ color: oklch(41.6% 0.125 269.0);

Tailwind

colors: {
  custom: {
    50: '#7478b0',
    500: '#31458f',
    950: '#000000',
  },
}

SCSS

$custom: #31458f;
$custom-light: #7478b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31458f",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 143
  },
  "hsl": {
    "h": 227.234,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.41637,
    "c": 0.12458,
    "h": 269
  },
  "luminance": 0.06892
}

Semantic roles & 50–950 ramp

primary

#31458F

secondary

#B5A467

accent

#BB4FD9

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #31458F

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

Preview Lab → · Contrast checker → · Palette generator →