#313B94#313B94

#313B94 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.145 H 273.1°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#313B94
RGB	rgb(49, 59, 148)
HSL	hsl(234, 50%, 39%)
HSV	hsv(234, 67%, 58%)
CMYK	cmyk(66.9%, 60.1%, 0%, 42%)
CIE-LAB	lab(29.21, 25.85, -50.33)
CIE-LCH	lch(29.21, 56.58, 297.19°)
OKLab	oklab(39.99% 0.0078 -0.1449)
OKLCH	oklch(39.99% 0.145 273.1)
XYZ	xyz(8.1741, 5.9183, 28.7228)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313B94 #948A31

analogous

#316C94 #313B94 #583194

triadic

#313B94 #94313B #3B9431

tetradic

#313B94 #94316C #948A31 #319458

square

#313B94 #94316C #948A31 #319458

split-complementary

#313B94 #945831 #6C9431

monochromatic

#131638 #222966 #313B94 #424FC0 #7079D0

Accessibility & contrast

On white

9.62

#313B94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#313B94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313B94

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313B94	#FFFFFF	#000000	##FFFFFF
##313B94	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004997

Deuteranopia (green-blind)

#004092

Tritanopia (blue-blind)

#005161

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313b94;
/* rgb */ color: rgb(49, 59, 148);
/* oklch */ color: oklch(40.0% 0.145 273.1);

Tailwind

colors: {
  custom: {
    50: '#7570b4',
    500: '#313b94',
    950: '#000000',
  },
}

SCSS

$custom: #313b94;
$custom-light: #7570b4;
$custom-dark: #000000;

JSON

{
  "hex": "#313b94",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 148
  },
  "hsl": {
    "h": 233.939,
    "s": 50.254,
    "l": 38.627
  },
  "oklch": {
    "l": 0.3999,
    "c": 0.14512,
    "h": 273.1
  },
  "luminance": 0.05919
}

Semantic roles & 50–950 ramp

primary

#313B94

secondary

#B7AF69

accent

#CC4EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #313B94

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

Preview Lab → · Contrast checker → · Palette generator →