#313E73#313E73

#313E73 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.1% C 0.092 H 271.1°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#313E73
RGB	rgb(49, 62, 115)
HSL	hsl(228, 40%, 32%)
HSV	hsv(228, 57%, 45%)
CMYK	cmyk(57.4%, 46.1%, 0%, 54.9%)
CIE-LAB	lab(27.67, 11.76, -32.24)
CIE-LCH	lch(27.67, 34.32, 290.04°)
OKLab	oklab(38.08% 0.0018 -0.0917)
OKLCH	oklch(38.08% 0.092 271.1)
XYZ	xyz(6.0827, 5.3356, 16.9257)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E73 #736631

analogous

#315F73 #313E73 #453173

triadic

#313E73 #73313E #3E7331

tetradic

#313E73 #73315F #736631 #317345

square

#313E73 #73315F #736631 #317345

split-complementary

#313E73 #734531 #5F7331

monochromatic

#0C101D #1F2748 #313E73 #43559E #6274BC

Accessibility & contrast

On white

10.16

#313E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#313E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E73

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E73	#FFFFFF	#000000	##FFFFFF
##313E73	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274475

Deuteranopia (green-blind)

#1F3F72

Tritanopia (blue-blind)

#0E4A53

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #313e73;
/* rgb */ color: rgb(49, 62, 115);
/* oklch */ color: oklch(38.1% 0.092 271.1);

Tailwind

colors: {
  custom: {
    50: '#6f739b',
    500: '#313e73',
    950: '#000000',
  },
}

SCSS

$custom: #313e73;
$custom-light: #6f739b;
$custom-dark: #000000;

JSON

{
  "hex": "#313e73",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 115
  },
  "hsl": {
    "h": 228.182,
    "s": 40.244,
    "l": 32.157
  },
  "oklch": {
    "l": 0.38078,
    "c": 0.09172,
    "h": 271.1
  },
  "luminance": 0.05336
}

Semantic roles & 50–950 ramp

primary

#313E73

secondary

#A4965C

accent

#B858D0

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#08080E

muted

#7B7B7E

Preview Lab

Preview with #313E73

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

Preview Lab → · Contrast checker → · Palette generator →