#313EBF#313EBF

#313EBF is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.4% C 0.199 H 270.9°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#313EBF
RGB	rgb(49, 62, 191)
HSL	hsl(235, 59%, 47%)
HSV	hsv(235, 74%, 75%)
CMYK	cmyk(74.3%, 67.5%, 0%, 25.1%)
CIE-LAB	lab(33.69, 39.36, -68.78)
CIE-LCH	lch(33.69, 79.25, 299.78°)
OKLab	oklab(44.43% 0.0033 -0.199)
OKLCH	oklch(44.43% 0.199 270.9)
XYZ	xyz(12.3900, 7.8585, 50.1440)
Luminance	0.0786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313EBF #BFB231

analogous

#3185BF #313EBF #6B31BF

triadic

#313EBF #BF313E #3EBF31

tetradic

#313EBF #BF3185 #BFB231 #31BF6B

square

#313EBF #BF3185 #BFB231 #31BF6B

split-complementary

#313EBF #BF6B31 #85BF31

monochromatic

#181E5E #252E8E #313EBF #5964D4 #8A92E1

Accessibility & contrast

On white

8.16

#313EBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#313EBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313EBF

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313EBF	#FFFFFF	#000000	##FFFFFF
##313EBF	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C3

Deuteranopia (green-blind)

#0048BD

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #313ebf;
/* rgb */ color: rgb(49, 62, 191);
/* oklch */ color: oklch(44.4% 0.199 270.9);

Tailwind

colors: {
  custom: {
    50: '#7f73d3',
    500: '#313ebf',
    950: '#000000',
  },
}

SCSS

$custom: #313ebf;
$custom-light: #7f73d3;
$custom-dark: #000000;

JSON

{
  "hex": "#313ebf",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 191
  },
  "hsl": {
    "h": 234.507,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44433,
    "c": 0.19901,
    "h": 270.9
  },
  "luminance": 0.0786
}

Semantic roles & 50–950 ramp

primary

#313EBF

secondary

#CBC481

accent

#D445E2

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #313EBF

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

Preview Lab → · Contrast checker → · Palette generator →