#313EBB#313EBB

#313EBB is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.1% C 0.194 H 271.1°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#313EBB
RGB	rgb(49, 62, 187)
HSL	hsl(234, 58%, 46%)
HSV	hsv(234, 74%, 73%)
CMYK	cmyk(73.8%, 66.8%, 0%, 26.7%)
CIE-LAB	lab(33.32, 37.95, -67.03)
CIE-LCH	lch(33.32, 77.03, 299.51°)
OKLab	oklab(44.05% 0.0036 -0.1939)
OKLCH	oklch(44.05% 0.194 271.1)
XYZ	xyz(11.9558, 7.6848, 47.8573)
Luminance	0.0769 (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

#313EBB #BBAE31

analogous

#3183BB #313EBB #6931BB

triadic

#313EBB #BB313E #3EBB31

tetradic

#313EBB #BB3183 #BBAE31 #31BB69

square

#313EBB #BB3183 #BBAE31 #31BB69

split-complementary

#313EBB #BB6931 #83BB31

monochromatic

#181E5A #242E8B #313EBB #5662D3 #878FE0

Accessibility & contrast

On white

8.28

#313EBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#313EBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313EBB

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313EBB	#FFFFFF	#000000	##FFFFFF
##313EBB	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BF

Deuteranopia (green-blind)

#0048B9

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #313ebb;
/* rgb */ color: rgb(49, 62, 187);
/* oklch */ color: oklch(44.1% 0.194 271.1);

Tailwind

colors: {
  custom: {
    50: '#7e73d1',
    500: '#313ebb',
    950: '#000000',
  },
}

SCSS

$custom: #313ebb;
$custom-light: #7e73d1;
$custom-dark: #000000;

JSON

{
  "hex": "#313ebb",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 187
  },
  "hsl": {
    "h": 234.348,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.44053,
    "c": 0.1939,
    "h": 271.1
  },
  "luminance": 0.07686
}

Semantic roles & 50–950 ramp

primary

#313EBB

secondary

#C9C27F

accent

#D346E2

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #313EBB

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

Preview Lab → · Contrast checker → · Palette generator →