#31509D#31509D

#31509D is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.1% C 0.131 H 265.1°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#31509D
RGB	rgb(49, 80, 157)
HSL	hsl(223, 52%, 40%)
HSV	hsv(223, 69%, 62%)
CMYK	cmyk(68.8%, 49%, 0%, 38.4%)
CIE-LAB	lab(35.64, 15.16, -45.38)
CIE-LCH	lch(35.64, 47.84, 288.47°)
OKLab	oklab(45.05% -0.0112 -0.1301)
OKLCH	oklch(45.05% 0.131 265.1)
XYZ	xyz(10.2190, 8.8236, 33.0563)
Luminance	0.0882 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31509D #9D7E31

analogous

#31869D #31509D #48319D

triadic

#31509D #9D3150 #509D31

tetradic

#31509D #9D3186 #9D7E31 #319D48

square

#31509D #9D3186 #9D7E31 #319D48

split-complementary

#31509D #9D4831 #869D31

monochromatic

#142040 #22386E #31509D #466AC5 #7590D4

Accessibility & contrast

On white

7.59

#31509D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#31509D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31509D

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31509D	#FFFFFF	#000000	##FFFFFF
##31509D	1.00	7.59	2.76	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2759A0

Deuteranopia (green-blind)

#0B4F9B

Tritanopia (blue-blind)

#00626F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #31509d;
/* rgb */ color: rgb(49, 80, 157);
/* oklch */ color: oklch(45.1% 0.131 265.1);

Tailwind

colors: {
  custom: {
    50: '#7680ba',
    500: '#31509d',
    950: '#000000',
  },
}

SCSS

$custom: #31509d;
$custom-light: #7680ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31509d",
  "rgb": {
    "r": 49,
    "g": 80,
    "b": 157
  },
  "hsl": {
    "h": 222.778,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.4505,
    "c": 0.13054,
    "h": 265.1
  },
  "luminance": 0.08825
}

Semantic roles & 50–950 ramp

primary

#31509D

secondary

#BCA56E

accent

#B34CDC

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #31509D

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

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