#313E7C#313E7C

#313E7C is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.7% C 0.106 H 271.7°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#313E7C
RGB	rgb(49, 62, 124)
HSL	hsl(230, 43%, 34%)
HSV	hsv(230, 60%, 49%)
CMYK	cmyk(60.5%, 50%, 0%, 51.4%)
CIE-LAB	lab(28.26, 15.03, -36.98)
CIE-LCH	lch(28.26, 39.92, 292.11°)
OKLab	oklab(38.71% 0.0032 -0.1056)
OKLCH	oklch(38.71% 0.106 271.7)
XYZ	xyz(6.6261, 5.5529, 19.7875)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E7C #7C6F31

analogous

#31647C #313E7C #4A317C

triadic

#313E7C #7C313E #3E7C31

tetradic

#313E7C #7C3164 #7C6F31 #317C4A

square

#313E7C #7C3164 #7C6F31 #317C4A

split-complementary

#313E7C #7C4A31 #647C31

monochromatic

#0E1224 #202850 #313E7C #4254A8 #6575C2

Accessibility & contrast

On white

9.95

#313E7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#313E7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E7C

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E7C	#FFFFFF	#000000	##FFFFFF
##313E7C	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20467E

Deuteranopia (green-blind)

#14407B

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #313e7c;
/* rgb */ color: rgb(49, 62, 124);
/* oklch */ color: oklch(38.7% 0.106 271.7);

Tailwind

colors: {
  custom: {
    50: '#7073a2',
    500: '#313e7c',
    950: '#000000',
  },
}

SCSS

$custom: #313e7c;
$custom-light: #7073a2;
$custom-dark: #000000;

JSON

{
  "hex": "#313e7c",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 124
  },
  "hsl": {
    "h": 229.6,
    "s": 43.353,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38712,
    "c": 0.10567,
    "h": 271.7
  },
  "luminance": 0.05553
}

Semantic roles & 50–950 ramp

primary

#313E7C

secondary

#AA9D5F

accent

#BD55D3

background

#F7F6FA

surface

#EDECF3

border

#C8C7CD

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #313E7C

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

Preview Lab → · Contrast checker → · Palette generator →