#313DAE#313DAE

#313DAE is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.7% C 0.178 H 271.7°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#313DAE
RGB	rgb(49, 61, 174)
HSL	hsl(234, 56%, 44%)
HSV	hsv(234, 72%, 68%)
CMYK	cmyk(71.8%, 64.9%, 0%, 31.8%)
CIE-LAB	lab(31.91, 33.96, -61.63)
CIE-LCH	lch(31.91, 70.37, 298.85°)
OKLab	oklab(42.67% 0.0052 -0.1781)
OKLCH	oklch(42.67% 0.178 271.7)
XYZ	xyz(10.5728, 7.0454, 40.8389)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.93

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313DAE #AEA231

analogous

#317BAE #313DAE #6331AE

triadic

#313DAE #AE313D #3DAE31

tetradic

#313DAE #AE317B #AEA231 #31AE63

square

#313DAE #AE317B #AEA231 #31AE63

split-complementary

#313DAE #AE6331 #7BAE31

monochromatic

#161C4E #242C7E #313DAE #4F5BCD #7F87DB

Accessibility & contrast

On white

8.72

#313DAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#313DAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313DAE

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313DAE	#FFFFFF	#000000	##FFFFFF
##313DAE	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B2

Deuteranopia (green-blind)

#0045AC

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #313dae;
/* rgb */ color: rgb(49, 61, 174);
/* oklch */ color: oklch(42.7% 0.178 271.7);

Tailwind

colors: {
  custom: {
    50: '#7b72c7',
    500: '#313dae',
    950: '#000000',
  },
}

SCSS

$custom: #313dae;
$custom-light: #7b72c7;
$custom-dark: #000000;

JSON

{
  "hex": "#313dae",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 174
  },
  "hsl": {
    "h": 234.24,
    "s": 56.054,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42667,
    "c": 0.17814,
    "h": 271.7
  },
  "luminance": 0.07046
}

Semantic roles & 50–950 ramp

primary

#313DAE

secondary

#C4BC77

accent

#D148DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #313DAE

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

Preview Lab → · Contrast checker → · Palette generator →