#313D64#313D64

#313D64 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.9% C 0.069 H 269.8°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#313D64
RGB	rgb(49, 61, 100)
HSL	hsl(226, 34%, 29%)
HSV	hsv(226, 51%, 39%)
CMYK	cmyk(51%, 39%, 0%, 60.8%)
CIE-LAB	lab(26.48, 7.14, -24.55)
CIE-LCH	lch(26.48, 25.57, 286.23°)
OKLab	oklab(36.87% -0.0002 -0.0692)
OKLCH	oklch(36.87% 0.069 269.8)
XYZ	xyz(5.2349, 4.9102, 12.7260)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D64 #645831

analogous

#315764 #313D64 #3F3164

triadic

#313D64 #64313D #3D6431

tetradic

#313D64 #643157 #645831 #31643F

square

#313D64 #643157 #645831 #31643F

split-complementary

#313D64 #643F31 #576431

monochromatic

#0A0D15 #1D243B #313D64 #45568D #5F72B1

Accessibility & contrast

On white

10.59

#313D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#313D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D64

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D64	#FFFFFF	#000000	##FFFFFF
##313D64	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4166

Deuteranopia (green-blind)

#293D63

Tritanopia (blue-blind)

#1D454B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313d64;
/* rgb */ color: rgb(49, 61, 100);
/* oklch */ color: oklch(36.9% 0.069 269.8);

Tailwind

colors: {
  custom: {
    50: '#6c7290',
    500: '#313d64',
    950: '#000000',
  },
}

SCSS

$custom: #313d64;
$custom-light: #6c7290;
$custom-dark: #000000;

JSON

{
  "hex": "#313d64",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 100
  },
  "hsl": {
    "h": 225.882,
    "s": 34.228,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36871,
    "c": 0.06921,
    "h": 269.8
  },
  "luminance": 0.04911
}

Semantic roles & 50–950 ramp

primary

#313D64

secondary

#95885C

accent

#B15DCA

background

#F6F6F8

surface

#ECECF0

border

#C7C7CB

text

#07070C

muted

#7A7A7D

Preview Lab

Preview with #313D64

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

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