#31599A#31599A

#31599A is a mid, moderate blue. Relative luminance 0.101; OKLCH L 46.9% C 0.115 H 259.6°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#31599A
RGB	rgb(49, 89, 154)
HSL	hsl(217, 52%, 40%)
HSV	hsv(217, 68%, 60%)
CMYK	cmyk(68.2%, 42.2%, 0%, 39.6%)
CIE-LAB	lab(38.07, 8.12, -39.68)
CIE-LCH	lch(38.07, 40.50, 281.56°)
OKLab	oklab(46.86% -0.0207 -0.1132)
OKLCH	oklch(46.86% 0.115 259.6)
XYZ	xyz(10.6697, 10.1298, 31.9585)
Luminance	0.1013 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31599A #9A7231

analogous

#318D9A #31599A #3E319A

triadic

#31599A #9A3159 #599A31

tetradic

#31599A #9A318D #9A7231 #319A3E

square

#31599A #9A318D #9A7231 #319A3E

split-complementary

#31599A #9A3E31 #8D9A31

monochromatic

#13233D #223E6C #31599A #4575C4 #7397D2

Accessibility & contrast

On white

6.94

#31599A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#31599A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31599A

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31599A	#FFFFFF	#000000	##FFFFFF
##31599A	1.00	6.94	3.03	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B5F9D

Deuteranopia (green-blind)

#2A5599

Tritanopia (blue-blind)

#006872

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #31599a;
/* rgb */ color: rgb(49, 89, 154);
/* oklch */ color: oklch(46.9% 0.115 259.6);

Tailwind

colors: {
  custom: {
    50: '#7587b8',
    500: '#31599a',
    950: '#000000',
  },
}

SCSS

$custom: #31599a;
$custom-light: #7587b8;
$custom-dark: #000000;

JSON

{
  "hex": "#31599a",
  "rgb": {
    "r": 49,
    "g": 89,
    "b": 154
  },
  "hsl": {
    "h": 217.143,
    "s": 51.724,
    "l": 39.804
  },
  "oklch": {
    "l": 0.46859,
    "c": 0.11504,
    "h": 259.6
  },
  "luminance": 0.10131
}

Semantic roles & 50–950 ramp

primary

#31599A

secondary

#BA9D6C

accent

#A54DDB

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #31599A

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

Preview Lab → · Contrast checker → · Palette generator →