#231687#231687

#231687 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.173 H 275.4°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#231687
RGB	rgb(35, 22, 135)
HSL	hsl(247, 72%, 31%)
HSV	hsv(247, 84%, 53%)
CMYK	cmyk(74.1%, 83.7%, 0%, 47.1%)
CIE-LAB	lab(18.71, 42.02, -59.52)
CIE-LCH	lch(18.71, 72.86, 305.22°)
OKLab	oklab(31.8% 0.0162 -0.1721)
OKLCH	oklch(31.8% 0.173 275.4)
XYZ	xyz(5.3518, 2.6799, 23.1522)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231687 #7A8716

analogous

#164187 #231687 #5B1687

triadic

#231687 #872316 #168723

tetradic

#231687 #871641 #7A8716 #16875B

square

#231687 #871641 #7A8716 #16875B

split-complementary

#231687 #875B16 #418716

monochromatic

#08051E #150D52 #231687 #311FBC #4C39DF

Accessibility & contrast

On white

13.67

#231687 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#231687 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231687

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231687	#FFFFFF	#000000	##FFFFFF
##231687	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328A

Deuteranopia (green-blind)

#002885

Tritanopia (blue-blind)

#003A50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #231687;
/* rgb */ color: rgb(35, 22, 135);
/* oklch */ color: oklch(31.8% 0.173 275.4);

Tailwind

colors: {
  custom: {
    50: '#7057ab',
    500: '#231687',
    950: '#000000',
  },
}

SCSS

$custom: #231687;
$custom-light: #7057ab;
$custom-dark: #000000;

JSON

{
  "hex": "#231687",
  "rgb": {
    "r": 35,
    "g": 22,
    "b": 135
  },
  "hsl": {
    "h": 246.903,
    "s": 71.975,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31796,
    "c": 0.17284,
    "h": 275.4
  },
  "luminance": 0.0268
}

Semantic roles & 50–950 ramp

primary

#231687

secondary

#ADBB3E

accent

#EF39DA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #231687

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

Preview Lab → · Contrast checker → · Palette generator →