#31406B#31406B

#31406B is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.0% C 0.076 H 268.1°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#31406B
RGB	rgb(49, 64, 107)
HSL	hsl(224, 37%, 31%)
HSV	hsv(224, 54%, 42%)
CMYK	cmyk(54.2%, 40.2%, 0%, 58%)
CIE-LAB	lab(27.79, 7.55, -26.96)
CIE-LCH	lch(27.79, 28.00, 285.65°)
OKLab	oklab(38.02% -0.0025 -0.0762)
OKLCH	oklch(38.02% 0.076 268.1)
XYZ	xyz(5.7530, 5.3809, 14.6425)
Luminance	0.0538 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31406B #6B5C31

analogous

#315D6B #31406B #3F316B

triadic

#31406B #6B3140 #406B31

tetradic

#31406B #6B315D #6B5C31 #316B3F

square

#31406B #6B315D #6B5C31 #316B3F

split-complementary

#31406B #6B3F31 #5D6B31

monochromatic

#0B0E17 #1E2741 #31406B #445995 #6076B6

Accessibility & contrast

On white

10.11

#31406B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#31406B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31406B

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31406B	#FFFFFF	#000000	##FFFFFF
##31406B	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F446D

Deuteranopia (green-blind)

#293F6A

Tritanopia (blue-blind)

#174950

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #31406b;
/* rgb */ color: rgb(49, 64, 107);
/* oklch */ color: oklch(38.0% 0.076 268.1);

Tailwind

colors: {
  custom: {
    50: '#6d7495',
    500: '#31406b',
    950: '#000000',
  },
}

SCSS

$custom: #31406b;
$custom-light: #6d7495;
$custom-dark: #000000;

JSON

{
  "hex": "#31406b",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 107
  },
  "hsl": {
    "h": 224.483,
    "s": 37.179,
    "l": 30.588
  },
  "oklch": {
    "l": 0.38016,
    "c": 0.07626,
    "h": 268.1
  },
  "luminance": 0.05381
}

Semantic roles & 50–950 ramp

primary

#31406B

secondary

#9C8B5C

accent

#B05BCD

background

#F6F7F9

surface

#ECEDF2

border

#C7C8CC

text

#07080D

muted

#7A7B7E

Preview Lab

Preview with #31406B

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

Preview Lab → · Contrast checker → · Palette generator →