#31407D#31407D

#31407D is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.2% C 0.104 H 270.6°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#31407D
RGB	rgb(49, 64, 125)
HSL	hsl(228, 44%, 34%)
HSV	hsv(228, 61%, 49%)
CMYK	cmyk(60.8%, 48.8%, 0%, 51%)
CIE-LAB	lab(28.90, 14.03, -36.57)
CIE-LCH	lch(28.90, 39.17, 290.99°)
OKLab	oklab(39.23% 0.001 -0.1044)
OKLCH	oklch(39.23% 0.104 270.6)
XYZ	xyz(6.8005, 5.7999, 20.1592)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31407D #7D6E31

analogous

#31667D #31407D #48317D

triadic

#31407D #7D3140 #407D31

tetradic

#31407D #7D3166 #7D6E31 #317D48

square

#31407D #7D3166 #7D6E31 #317D48

split-complementary

#31407D #7D4831 #667D31

monochromatic

#0F1325 #202951 #31407D #4257A9 #6678C3

Accessibility & contrast

On white

9.72

#31407D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#31407D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31407D

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31407D	#FFFFFF	#000000	##FFFFFF
##31407D	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23487F

Deuteranopia (green-blind)

#17417C

Tritanopia (blue-blind)

#004E58

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #31407d;
/* rgb */ color: rgb(49, 64, 125);
/* oklch */ color: oklch(39.2% 0.104 270.6);

Tailwind

colors: {
  custom: {
    50: '#7074a3',
    500: '#31407d',
    950: '#000000',
  },
}

SCSS

$custom: #31407d;
$custom-light: #7074a3;
$custom-dark: #000000;

JSON

{
  "hex": "#31407d",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 125
  },
  "hsl": {
    "h": 228.158,
    "s": 43.678,
    "l": 34.118
  },
  "oklch": {
    "l": 0.39226,
    "c": 0.1044,
    "h": 270.6
  },
  "luminance": 0.058
}

Semantic roles & 50–950 ramp

primary

#31407D

secondary

#AA9B60

accent

#BA54D3

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #31407D

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

Preview Lab → · Contrast checker → · Palette generator →