#231A8E#231A8E

#231A8E is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.1% C 0.178 H 274.1°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#231A8E
RGB	rgb(35, 26, 142)
HSL	hsl(245, 69%, 33%)
HSV	hsv(245, 82%, 56%)
CMYK	cmyk(75.4%, 81.7%, 0%, 44.3%)
CIE-LAB	lab(20.24, 42.26, -61.38)
CIE-LCH	lch(20.24, 74.52, 304.55°)
OKLab	oklab(33.1% 0.0127 -0.1775)
OKLCH	oklch(33.1% 0.178 274.1)
XYZ	xyz(5.9434, 3.0485, 25.8611)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A8E #858E1A

analogous

#1A4B8E #231A8E #5D1A8E

triadic

#231A8E #8E231A #1A8E23

tetradic

#231A8E #8E1A4B #858E1A #1A8E5D

square

#231A8E #8E1A4B #858E1A #1A8E5D

split-complementary

#231A8E #8E5D1A #4B8E1A

monochromatic

#090727 #16115A #231A8E #3023C2 #5145DD

Accessibility & contrast

On white

13.05

#231A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#231A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A8E

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A8E	#FFFFFF	#000000	##FFFFFF
##231A8E	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003691

Deuteranopia (green-blind)

#002B8C

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #231a8e;
/* rgb */ color: rgb(35, 26, 142);
/* oklch */ color: oklch(33.1% 0.178 274.1);

Tailwind

colors: {
  custom: {
    50: '#715ab0',
    500: '#231a8e',
    950: '#000000',
  },
}

SCSS

$custom: #231a8e;
$custom-light: #715ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#231a8e",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 142
  },
  "hsl": {
    "h": 244.655,
    "s": 69.048,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33098,
    "c": 0.17799,
    "h": 274.1
  },
  "luminance": 0.03049
}

Semantic roles & 50–950 ramp

primary

#231A8E

secondary

#B5BE45

accent

#EC3CDE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231A8E

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

Preview Lab → · Contrast checker → · Palette generator →