#23187A#23187A

#23187A is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.155 H 277.0°. Best body text is #FFFFFF at 14.16:1 contrast (WCAG AA passes).

Color values

HEX	#23187A
RGB	rgb(35, 24, 122)
HSL	hsl(247, 67%, 29%)
HSV	hsv(247, 80%, 48%)
CMYK	cmyk(71.3%, 80.3%, 0%, 52.2%)
CIE-LAB	lab(17.53, 36.77, -53.23)
CIE-LCH	lch(17.53, 64.70, 304.64°)
OKLab	oklab(30.52% 0.0189 -0.1538)
OKLCH	oklch(30.52% 0.155 277)
XYZ	xyz(4.5315, 2.4153, 18.6360)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23187A #6F7A18

analogous

#183E7A #23187A #54187A

triadic

#23187A #7A2318 #187A23

tetradic

#23187A #7A183E #6F7A18 #187A54

square

#23187A #7A183E #6F7A18 #187A54

split-complementary

#23187A #7A5418 #3E7A18

monochromatic

#07051A #140E47 #23187A #3222AD #4735D7

Accessibility & contrast

On white

14.16

#23187A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#23187A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23187A

14.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23187A	#FFFFFF	#000000	##FFFFFF
##23187A	1.00	14.16	1.48	14.16
#FFFFFF	14.16	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7D

Deuteranopia (green-blind)

#002778

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #23187a;
/* rgb */ color: rgb(35, 24, 122);
/* oklch */ color: oklch(30.5% 0.155 277.0);

Tailwind

colors: {
  custom: {
    50: '#6c57a2',
    500: '#23187a',
    950: '#000000',
  },
}

SCSS

$custom: #23187a;
$custom-light: #6c57a2;
$custom-dark: #000000;

JSON

{
  "hex": "#23187a",
  "rgb": {
    "r": 35,
    "g": 24,
    "b": 122
  },
  "hsl": {
    "h": 246.735,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30523,
    "c": 0.15499,
    "h": 277
  },
  "luminance": 0.02416
}

Semantic roles & 50–950 ramp

primary

#23187A

secondary

#A2AF3F

accent

#EA3ED7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #23187A

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

Preview Lab → · Contrast checker → · Palette generator →