#31458E#31458E

#31458E is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.6% C 0.123 H 269.0°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#31458E
RGB	rgb(49, 69, 142)
HSL	hsl(227, 49%, 37%)
HSV	hsv(227, 65%, 56%)
CMYK	cmyk(65.5%, 51.4%, 0%, 44.3%)
CIE-LAB	lab(31.49, 16.91, -42.95)
CIE-LCH	lch(31.49, 46.16, 291.49°)
OKLab	oklab(41.56% -0.0022 -0.1231)
OKLCH	oklch(41.56% 0.123 269)
XYZ	xyz(8.2756, 6.8615, 26.4742)
Luminance	0.0686 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31458E #8E7A31

analogous

#31738E #31458E #4C318E

triadic

#31458E #8E3145 #458E31

tetradic

#31458E #8E3173 #8E7A31 #318E4C

square

#31458E #8E3173 #8E7A31 #318E4C

split-complementary

#31458E #8E4C31 #738E31

monochromatic

#121933 #212F61 #31458E #415BBB #6D81CD

Accessibility & contrast

On white

8.85

#31458E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#31458E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31458E

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31458E	#FFFFFF	#000000	##FFFFFF
##31458E	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4E91

Deuteranopia (green-blind)

#03468C

Tritanopia (blue-blind)

#005663

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31458e;
/* rgb */ color: rgb(49, 69, 142);
/* oklch */ color: oklch(41.6% 0.123 269.0);

Tailwind

colors: {
  custom: {
    50: '#7378b0',
    500: '#31458e',
    950: '#000000',
  },
}

SCSS

$custom: #31458e;
$custom-light: #7378b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31458e",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 142
  },
  "hsl": {
    "h": 227.097,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.41562,
    "c": 0.1231,
    "h": 269
  },
  "luminance": 0.06862
}

Semantic roles & 50–950 ramp

primary

#31458E

secondary

#B4A367

accent

#BB50D8

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #31458E

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

Preview Lab → · Contrast checker → · Palette generator →