#31428E#31428E

#31428E is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.9% C 0.127 H 270.4°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#31428E
RGB	rgb(49, 66, 142)
HSL	hsl(229, 49%, 37%)
HSV	hsv(229, 65%, 56%)
CMYK	cmyk(65.5%, 53.5%, 0%, 44.3%)
CIE-LAB	lab(30.64, 18.94, -44.31)
CIE-LCH	lch(30.64, 48.19, 293.14°)
OKLab	oklab(40.92% 0.0008 -0.1271)
OKLCH	oklch(40.92% 0.127 270.4)
XYZ	xyz(8.0957, 6.5017, 26.4143)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31428E #8E7D31

analogous

#31718E #31428E #4E318E

triadic

#31428E #8E3142 #428E31

tetradic

#31428E #8E3171 #8E7D31 #318E4E

square

#31428E #8E3171 #8E7D31 #318E4E

split-complementary

#31428E #8E4E31 #718E31

monochromatic

#121833 #212D61 #31428E #4157BB #6D7ECD

Accessibility & contrast

On white

9.13

#31428E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#31428E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31428E

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31428E	#FFFFFF	#000000	##FFFFFF
##31428E	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134C91

Deuteranopia (green-blind)

#00448C

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #31428e;
/* rgb */ color: rgb(49, 66, 142);
/* oklch */ color: oklch(40.9% 0.127 270.4);

Tailwind

colors: {
  custom: {
    50: '#7476b0',
    500: '#31428e',
    950: '#000000',
  },
}

SCSS

$custom: #31428e;
$custom-light: #7476b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31428e",
  "rgb": {
    "r": 49,
    "g": 66,
    "b": 142
  },
  "hsl": {
    "h": 229.032,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40922,
    "c": 0.12713,
    "h": 270.4
  },
  "luminance": 0.06502
}

Semantic roles & 50–950 ramp

primary

#31428E

secondary

#B4A667

accent

#BF50D8

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #31428E

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

Preview Lab → · Contrast checker → · Palette generator →