#313E80#313E80

#313E80 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.0% C 0.112 H 271.9°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#313E80
RGB	rgb(49, 62, 128)
HSL	hsl(230, 45%, 35%)
HSV	hsv(230, 62%, 50%)
CMYK	cmyk(61.7%, 51.6%, 0%, 49.8%)
CIE-LAB	lab(28.53, 16.49, -39.05)
CIE-LCH	lch(28.53, 42.39, 292.89°)
OKLab	oklab(39.01% 0.0037 -0.1117)
OKLCH	oklch(39.01% 0.112 271.9)
XYZ	xyz(6.8842, 5.6562, 21.1469)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E80 #807331

analogous

#316580 #313E80 #4C3180

triadic

#313E80 #80313E #3E8031

tetradic

#313E80 #803165 #807331 #31804C

square

#313E80 #803165 #807331 #31804C

split-complementary

#313E80 #804C31 #658031

monochromatic

#0F1327 #202954 #313E80 #4253AC #6776C5

Accessibility & contrast

On white

9.85

#313E80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#313E80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E80

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E80	#FFFFFF	#000000	##FFFFFF
##313E80	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4782

Deuteranopia (green-blind)

#0C407F

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #313e80;
/* rgb */ color: rgb(49, 62, 128);
/* oklch */ color: oklch(39.0% 0.112 271.9);

Tailwind

colors: {
  custom: {
    50: '#7173a5',
    500: '#313e80',
    950: '#000000',
  },
}

SCSS

$custom: #313e80;
$custom-light: #7173a5;
$custom-dark: #000000;

JSON

{
  "hex": "#313e80",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 128
  },
  "hsl": {
    "h": 230.127,
    "s": 44.633,
    "l": 34.706
  },
  "oklch": {
    "l": 0.39007,
    "c": 0.11176,
    "h": 271.9
  },
  "luminance": 0.05657
}

Semantic roles & 50–950 ramp

primary

#313E80

secondary

#ACA061

accent

#BF53D4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #313E80

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

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