#313EAF#313EAF

#313EAF is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.9% C 0.178 H 271.4°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#313EAF
RGB	rgb(49, 62, 175)
HSL	hsl(234, 56%, 44%)
HSV	hsv(234, 72%, 69%)
CMYK	cmyk(72%, 64.6%, 0%, 31.4%)
CIE-LAB	lab(32.24, 33.68, -61.69)
CIE-LCH	lch(32.24, 70.28, 298.63°)
OKLab	oklab(42.94% 0.0045 -0.1782)
OKLCH	oklch(42.94% 0.178 271.4)
XYZ	xyz(10.7245, 7.1923, 41.3722)
Luminance	0.0719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.91

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313EAF #AFA231

analogous

#317DAF #313EAF #6331AF

triadic

#313EAF #AF313E #3EAF31

tetradic

#313EAF #AF317D #AFA231 #31AF63

square

#313EAF #AF317D #AFA231 #31AF63

split-complementary

#313EAF #AF6331 #7DAF31

monochromatic

#161C4F #242D7F #313EAF #4F5CCE #7F89DB

Accessibility & contrast

On white

8.61

#313EAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#313EAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313EAF

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313EAF	#FFFFFF	#000000	##FFFFFF
##313EAF	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B3

Deuteranopia (green-blind)

#0046AD

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #313eaf;
/* rgb */ color: rgb(49, 62, 175);
/* oklch */ color: oklch(42.9% 0.178 271.4);

Tailwind

colors: {
  custom: {
    50: '#7b73c8',
    500: '#313eaf',
    950: '#000000',
  },
}

SCSS

$custom: #313eaf;
$custom-light: #7b73c8;
$custom-dark: #000000;

JSON

{
  "hex": "#313eaf",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 175
  },
  "hsl": {
    "h": 233.81,
    "s": 56.25,
    "l": 43.922
  },
  "oklch": {
    "l": 0.42936,
    "c": 0.17827,
    "h": 271.4
  },
  "luminance": 0.07193
}

Semantic roles & 50–950 ramp

primary

#313EAF

secondary

#C4BC78

accent

#D048E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #313EAF

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

Preview Lab → · Contrast checker → · Palette generator →