#31508F#31508F

#31508F is a dark, moderate blue. Relative luminance 0.084; OKLCH L 44.1% C 0.110 H 262.9°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#31508F
RGB	rgb(49, 80, 143)
HSL	hsl(220, 49%, 38%)
HSV	hsv(220, 66%, 56%)
CMYK	cmyk(65.7%, 44.1%, 0%, 43.9%)
CIE-LAB	lab(34.75, 9.93, -38.34)
CIE-LCH	lch(34.75, 39.60, 284.52°)
OKLab	oklab(44.07% -0.0136 -0.1094)
OKLCH	oklch(44.07% 0.11 262.9)
XYZ	xyz(9.0915, 8.3726, 27.1182)
Luminance	0.0837 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31508F #8F7031

analogous

#317F8F #31508F #41318F

triadic

#31508F #8F3150 #508F31

tetradic

#31508F #8F317F #8F7031 #318F41

square

#31508F #8F317F #8F7031 #318F41

split-complementary

#31508F #8F4131 #7F8F31

monochromatic

#121D34 #213661 #31508F #4169BD #6D8DCD

Accessibility & contrast

On white

7.85

#31508F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#31508F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31508F

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31508F	#FFFFFF	#000000	##FFFFFF
##31508F	1.00	7.85	2.67	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335691

Deuteranopia (green-blind)

#244E8E

Tritanopia (blue-blind)

#005E68

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #31508f;
/* rgb */ color: rgb(49, 80, 143);
/* oklch */ color: oklch(44.1% 0.110 262.9);

Tailwind

colors: {
  custom: {
    50: '#7380b0',
    500: '#31508f',
    950: '#000000',
  },
}

SCSS

$custom: #31508f;
$custom-light: #7380b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31508f",
  "rgb": {
    "r": 49,
    "g": 80,
    "b": 143
  },
  "hsl": {
    "h": 220.213,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.44074,
    "c": 0.1102,
    "h": 262.9
  },
  "luminance": 0.08373
}

Semantic roles & 50–950 ramp

primary

#31508F

secondary

#B59B67

accent

#AB4FD9

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #31508F

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

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