#31548E#31548E

#31548E is a dark, moderate blue. Relative luminance 0.089; OKLCH L 44.9% C 0.104 H 260.0°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#31548E
RGB	rgb(49, 84, 142)
HSL	hsl(217, 49%, 37%)
HSV	hsv(217, 65%, 56%)
CMYK	cmyk(65.5%, 40.8%, 0%, 44.3%)
CIE-LAB	lab(35.88, 6.93, -35.93)
CIE-LCH	lch(35.88, 36.59, 280.92°)
OKLab	oklab(44.93% -0.0181 -0.1022)
OKLCH	oklch(44.93% 0.104 260)
XYZ	xyz(9.3177, 8.9457, 26.8216)
Luminance	0.0895 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31548E #8E6B31

analogous

#31838E #31548E #3C318E

triadic

#31548E #8E3154 #548E31

tetradic

#31548E #8E3183 #8E6B31 #318E3C

square

#31548E #8E3183 #8E6B31 #318E3C

split-complementary

#31548E #8E3C31 #838E31

monochromatic

#121E33 #213961 #31548E #416FBB #6D91CD

Accessibility & contrast

On white

7.53

#31548E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#31548E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31548E

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31548E	#FFFFFF	#000000	##FFFFFF
##31548E	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A5990

Deuteranopia (green-blind)

#2D508D

Tritanopia (blue-blind)

#00616A

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #31548e;
/* rgb */ color: rgb(49, 84, 142);
/* oklch */ color: oklch(44.9% 0.104 260.0);

Tailwind

colors: {
  custom: {
    50: '#7383af',
    500: '#31548e',
    950: '#000000',
  },
}

SCSS

$custom: #31548e;
$custom-light: #7383af;
$custom-dark: #000000;

JSON

{
  "hex": "#31548e",
  "rgb": {
    "r": 49,
    "g": 84,
    "b": 142
  },
  "hsl": {
    "h": 217.419,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.4493,
    "c": 0.10382,
    "h": 260
  },
  "luminance": 0.08947
}

Semantic roles & 50–950 ramp

primary

#31548E

secondary

#B49767

accent

#A550D8

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #31548E

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

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