#31447B#31447B

#31447B is a dark, moderate blue. Relative luminance 0.062; OKLCH L 40.0% C 0.096 H 267.6°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#31447B
RGB	rgb(49, 68, 123)
HSL	hsl(225, 43%, 34%)
HSV	hsv(225, 60%, 48%)
CMYK	cmyk(60.2%, 44.7%, 0%, 51.8%)
CIE-LAB	lab(29.95, 10.59, -33.64)
CIE-LCH	lch(29.95, 35.27, 287.47°)
OKLab	oklab(39.99% -0.004 -0.0957)
OKLCH	oklch(39.99% 0.096 267.6)
XYZ	xyz(6.9077, 6.2167, 19.5710)
Luminance	0.0622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31447B #7B6831

analogous

#31697B #31447B #43317B

triadic

#31447B #7B3144 #447B31

tetradic

#31447B #7B3169 #7B6831 #317B43

square

#31447B #7B3169 #7B6831 #317B43

split-complementary

#31447B #7B4331 #697B31

monochromatic

#0E1423 #202C4F #31447B #425CA7 #657DC2

Accessibility & contrast

On white

9.36

#31447B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#31447B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31447B

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31447B	#FFFFFF	#000000	##FFFFFF
##31447B	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4A7D

Deuteranopia (green-blind)

#22437A

Tritanopia (blue-blind)

#005059

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #31447b;
/* rgb */ color: rgb(49, 68, 123);
/* oklch */ color: oklch(40.0% 0.096 267.6);

Tailwind

colors: {
  custom: {
    50: '#7077a1',
    500: '#31447b',
    950: '#000000',
  },
}

SCSS

$custom: #31447b;
$custom-light: #7077a1;
$custom-dark: #000000;

JSON

{
  "hex": "#31447b",
  "rgb": {
    "r": 49,
    "g": 68,
    "b": 123
  },
  "hsl": {
    "h": 224.595,
    "s": 43.023,
    "l": 33.725
  },
  "oklch": {
    "l": 0.39988,
    "c": 0.09581,
    "h": 267.6
  },
  "luminance": 0.06217
}

Semantic roles & 50–950 ramp

primary

#31447B

secondary

#A9965F

accent

#B255D3

background

#F7F7FA

surface

#EDEDF3

border

#C8C8CD

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #31447B

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

Preview Lab → · Contrast checker → · Palette generator →