#23178E#23178E

#23178E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.7% C 0.180 H 274.4°. Best body text is #FFFFFF at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#23178E
RGB	rgb(35, 23, 142)
HSL	hsl(246, 72%, 32%)
HSV	hsv(246, 84%, 56%)
CMYK	cmyk(75.4%, 83.8%, 0%, 44.3%)
CIE-LAB	lab(19.73, 43.74, -62.22)
CIE-LCH	lch(19.73, 76.06, 305.11°)
OKLab	oklab(32.75% 0.0138 -0.1799)
OKLCH	oklch(32.75% 0.18 274.4)
XYZ	xyz(5.8804, 2.9225, 25.8401)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23178E #828E17

analogous

#17478E #23178E #5E178E

triadic

#23178E #8E2317 #178E23

tetradic

#23178E #8E1747 #828E17 #178E5E

square

#23178E #8E1747 #828E17 #178E5E

split-complementary

#23178E #8E5E17 #478E17

monochromatic

#090625 #160E59 #23178E #3020C3 #503FE0

Accessibility & contrast

On white

13.25

#23178E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#23178E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23178E

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23178E	#FFFFFF	#000000	##FFFFFF
##23178E	1.00	13.25	1.58	13.25
#FFFFFF	13.25	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#002A8C

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #23178e;
/* rgb */ color: rgb(35, 23, 142);
/* oklch */ color: oklch(32.7% 0.180 274.4);

Tailwind

colors: {
  custom: {
    50: '#7158b0',
    500: '#23178e',
    950: '#000000',
  },
}

SCSS

$custom: #23178e;
$custom-light: #7158b0;
$custom-dark: #000000;

JSON

{
  "hex": "#23178e",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 246.05,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32747,
    "c": 0.18045,
    "h": 274.4
  },
  "luminance": 0.02923
}

Semantic roles & 50–950 ramp

primary

#23178E

secondary

#B3C040

accent

#EF39DC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #23178E

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

Preview Lab → · Contrast checker → · Palette generator →