#313D7A#313D7A

#313D7A is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.3% C 0.104 H 272.3°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#313D7A
RGB	rgb(49, 61, 122)
HSL	hsl(230, 43%, 34%)
HSV	hsv(230, 60%, 48%)
CMYK	cmyk(59.8%, 50%, 0%, 52.2%)
CIE-LAB	lab(27.83, 14.98, -36.41)
CIE-LCH	lch(27.83, 39.37, 292.37°)
OKLab	oklab(38.35% 0.0041 -0.1039)
OKLCH	oklch(38.35% 0.104 272.3)
XYZ	xyz(6.4471, 5.3951, 19.1102)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D7A #7A6E31

analogous

#31617A #313D7A #49317A

triadic

#313D7A #7A313D #3D7A31

tetradic

#313D7A #7A3161 #7A6E31 #317A49

square

#313D7A #7A3161 #7A6E31 #317A49

split-complementary

#313D7A #7A4931 #617A31

monochromatic

#0E1123 #1F274E #313D7A #4353A6 #6474C1

Accessibility & contrast

On white

10.10

#313D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#313D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D7A

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D7A	#FFFFFF	#000000	##FFFFFF
##313D7A	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F457C

Deuteranopia (green-blind)

#143F79

Tritanopia (blue-blind)

#014B55

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313d7a;
/* rgb */ color: rgb(49, 61, 122);
/* oklch */ color: oklch(38.3% 0.104 272.3);

Tailwind

colors: {
  custom: {
    50: '#7072a1',
    500: '#313d7a',
    950: '#000000',
  },
}

SCSS

$custom: #313d7a;
$custom-light: #7072a1;
$custom-dark: #000000;

JSON

{
  "hex": "#313d7a",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 122
  },
  "hsl": {
    "h": 230.137,
    "s": 42.69,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38348,
    "c": 0.10402,
    "h": 272.3
  },
  "luminance": 0.05396
}

Semantic roles & 50–950 ramp

primary

#313D7A

secondary

#A89C5E

accent

#BE55D2

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #313D7A

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

Preview Lab → · Contrast checker → · Palette generator →