#123183#123183

#123183 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.9% C 0.143 H 264.3°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#123183
RGB	rgb(18, 49, 131)
HSL	hsl(224, 76%, 29%)
HSV	hsv(224, 86%, 51%)
CMYK	cmyk(86.3%, 62.6%, 0%, 48.6%)
CIE-LAB	lab(23.55, 22.25, -49.08)
CIE-LCH	lch(23.55, 53.88, 294.39°)
OKLab	oklab(34.92% -0.0142 -0.142)
OKLCH	oklch(34.92% 0.143 264.3)
XYZ	xyz(5.4430, 3.9632, 21.9464)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123183 #836412

analogous

#126A83 #123183 #2C1283

triadic

#123183 #831231 #318312

tetradic

#123183 #83126A #836412 #12832C

square

#123183 #83126A #836412 #12832C

split-complementary

#123183 #832C12 #6A8312

monochromatic

#040A1B #0B1D4D #123183 #1945B9 #2D5FE2

Accessibility & contrast

On white

11.71

#123183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#123183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123183

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123183	#FFFFFF	#000000	##FFFFFF
##123183	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#003381

Tritanopia (blue-blind)

#004655

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #123183;
/* rgb */ color: rgb(18, 49, 131);
/* oklch */ color: oklch(34.9% 0.143 264.3);

Tailwind

colors: {
  custom: {
    50: '#6768a8',
    500: '#123183',
    950: '#000000',
  },
}

SCSS

$custom: #123183;
$custom-light: #6768a8;
$custom-dark: #000000;

JSON

{
  "hex": "#123183",
  "rgb": {
    "r": 18,
    "g": 49,
    "b": 131
  },
  "hsl": {
    "h": 223.54,
    "s": 75.839,
    "l": 29.216
  },
  "oklch": {
    "l": 0.3492,
    "c": 0.14273,
    "h": 264.3
  },
  "luminance": 0.03964
}

Semantic roles & 50–950 ramp

primary

#123183

secondary

#B89538

accent

#BF35F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #123183

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

Preview Lab → · Contrast checker → · Palette generator →