#31599E#31599E

#31599E is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.1% C 0.121 H 260.5°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#31599E
RGB	rgb(49, 89, 158)
HSL	hsl(218, 53%, 41%)
HSV	hsv(218, 69%, 62%)
CMYK	cmyk(69%, 43.7%, 0%, 38%)
CIE-LAB	lab(38.31, 9.61, -41.70)
CIE-LCH	lch(38.31, 42.79, 282.98°)
OKLab	oklab(47.12% -0.0198 -0.1191)
OKLCH	oklch(47.12% 0.121 260.5)
XYZ	xyz(11.0084, 10.2652, 33.7424)
Luminance	0.1027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31599E #9E7631

analogous

#318F9E #31599E #40319E

triadic

#31599E #9E3159 #599E31

tetradic

#31599E #9E318F #9E7631 #319E40

square

#31599E #9E318F #9E7631 #319E40

split-complementary

#31599E #9E4031 #8F9E31

monochromatic

#142441 #233F6F #31599E #4675C6 #7598D4

Accessibility & contrast

On white

6.88

#31599E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#31599E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31599E

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31599E	#FFFFFF	#000000	##FFFFFF
##31599E	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3860A1

Deuteranopia (green-blind)

#26569D

Tritanopia (blue-blind)

#006974

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #31599e;
/* rgb */ color: rgb(49, 89, 158);
/* oklch */ color: oklch(47.1% 0.121 260.5);

Tailwind

colors: {
  custom: {
    50: '#7687bb',
    500: '#31599e',
    950: '#000000',
  },
}

SCSS

$custom: #31599e;
$custom-light: #7687bb;
$custom-dark: #000000;

JSON

{
  "hex": "#31599e",
  "rgb": {
    "r": 49,
    "g": 89,
    "b": 158
  },
  "hsl": {
    "h": 217.982,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.47122,
    "c": 0.12073,
    "h": 260.5
  },
  "luminance": 0.10266
}

Semantic roles & 50–950 ramp

primary

#31599E

secondary

#BCA06E

accent

#A74CDC

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #31599E

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

Preview Lab → · Contrast checker → · Palette generator →