#31489F#31489F

#31489F is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.5% C 0.144 H 268.6°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#31489F
RGB	rgb(49, 72, 159)
HSL	hsl(227, 53%, 41%)
HSV	hsv(227, 69%, 62%)
CMYK	cmyk(69.2%, 54.7%, 0%, 37.6%)
CIE-LAB	lab(33.54, 21.23, -49.98)
CIE-LCH	lch(33.54, 54.30, 293.02°)
OKLab	oklab(43.5% -0.0035 -0.1437)
OKLCH	oklch(43.5% 0.144 268.6)
XYZ	xyz(9.8398, 7.7899, 33.7792)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31489F #9F8831

analogous

#317F9F #31489F #51319F

triadic

#31489F #9F3148 #489F31

tetradic

#31489F #9F317F #9F8831 #319F51

square

#31489F #9F317F #9F8831 #319F51

split-complementary

#31489F #9F5131 #7F9F31

monochromatic

#141E41 #233370 #31489F #4762C6 #768AD5

Accessibility & contrast

On white

8.21

#31489F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#31489F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31489F

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31489F	#FFFFFF	#000000	##FFFFFF
##31489F	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0654A2

Deuteranopia (green-blind)

#004A9D

Tritanopia (blue-blind)

#005D6C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #31489f;
/* rgb */ color: rgb(49, 72, 159);
/* oklch */ color: oklch(43.5% 0.144 268.6);

Tailwind

colors: {
  custom: {
    50: '#777abc',
    500: '#31489f',
    950: '#000000',
  },
}

SCSS

$custom: #31489f;
$custom-light: #777abc;
$custom-dark: #000000;

JSON

{
  "hex": "#31489f",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 159
  },
  "hsl": {
    "h": 227.455,
    "s": 52.885,
    "l": 40.784
  },
  "oklch": {
    "l": 0.435,
    "c": 0.14375,
    "h": 268.6
  },
  "luminance": 0.07791
}

Semantic roles & 50–950 ramp

primary

#31489F

secondary

#BDAD6F

accent

#BE4CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #31489F

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

Preview Lab → · Contrast checker → · Palette generator →