#12358D#12358D

#12358D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.7% C 0.151 H 263.9°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#12358D
RGB	rgb(18, 53, 141)
HSL	hsl(223, 77%, 31%)
HSV	hsv(223, 87%, 55%)
CMYK	cmyk(87.2%, 62.4%, 0%, 44.7%)
CIE-LAB	lab(25.55, 23.54, -52.03)
CIE-LCH	lch(25.55, 57.11, 294.34°)
OKLab	oklab(36.69% -0.0162 -0.1506)
OKLCH	oklch(36.69% 0.151 263.9)
XYZ	xyz(6.3286, 4.5971, 25.7479)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12358D #8D6A12

analogous

#12728D #12358D #2C128D

triadic

#12358D #8D1235 #358D12

tetradic

#12358D #8D1272 #8D6A12 #128D2C

square

#12358D #8D1272 #8D6A12 #128D2C

split-complementary

#12358D #8D2C12 #728D12

monochromatic

#040C20 #0B2157 #12358D #1949C3 #3467E5

Accessibility & contrast

On white

10.94

#12358D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#12358D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12358D

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12358D	#FFFFFF	#000000	##FFFFFF
##12358D	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004290

Deuteranopia (green-blind)

#00378B

Tritanopia (blue-blind)

#004C5B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #12358d;
/* rgb */ color: rgb(18, 53, 141);
/* oklch */ color: oklch(36.7% 0.151 263.9);

Tailwind

colors: {
  custom: {
    50: '#696baf',
    500: '#12358d',
    950: '#000000',
  },
}

SCSS

$custom: #12358d;
$custom-light: #696baf;
$custom-dark: #000000;

JSON

{
  "hex": "#12358d",
  "rgb": {
    "r": 18,
    "g": 53,
    "b": 141
  },
  "hsl": {
    "h": 222.927,
    "s": 77.358,
    "l": 31.176
  },
  "oklch": {
    "l": 0.36693,
    "c": 0.15149,
    "h": 263.9
  },
  "luminance": 0.04598
}

Semantic roles & 50–950 ramp

primary

#12358D

secondary

#C19B39

accent

#BD34F4

background

#F6F6FA

surface

#ECEBF5

border

#C7C6CF

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #12358D

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

Preview Lab → · Contrast checker → · Palette generator →