#123BA0#123BA0

#123BA0 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.7% C 0.170 H 263.6°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#123BA0
RGB	rgb(18, 59, 160)
HSL	hsl(223, 80%, 35%)
HSV	hsv(223, 89%, 63%)
CMYK	cmyk(88.8%, 63.1%, 0%, 37.3%)
CIE-LAB	lab(28.89, 27.07, -58.22)
CIE-LCH	lch(28.89, 64.20, 294.94°)
OKLab	oklab(39.7% -0.0189 -0.1686)
OKLCH	oklch(39.7% 0.17 263.6)
XYZ	xyz(8.1563, 5.7935, 33.9393)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123BA0 #A07712

analogous

#1282A0 #123BA0 #3012A0

triadic

#123BA0 #A0123B #3BA012

tetradic

#123BA0 #A01282 #A07712 #12A030

square

#123BA0 #A01282 #A07712 #12A030

split-complementary

#123BA0 #A03012 #82A012

monochromatic

#061232 #0C2769 #123BA0 #184FD7 #4373EA

Accessibility & contrast

On white

9.73

#123BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#123BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123BA0

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123BA0	#FFFFFF	#000000	##FFFFFF
##123BA0	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA3

Deuteranopia (green-blind)

#003E9E

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #123ba0;
/* rgb */ color: rgb(18, 59, 160);
/* oklch */ color: oklch(39.7% 0.170 263.6);

Tailwind

colors: {
  custom: {
    50: '#6e70bd',
    500: '#123ba0',
    950: '#000000',
  },
}

SCSS

$custom: #123ba0;
$custom-light: #6e70bd;
$custom-dark: #000000;

JSON

{
  "hex": "#123ba0",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 160
  },
  "hsl": {
    "h": 222.676,
    "s": 79.775,
    "l": 34.902
  },
  "oklch": {
    "l": 0.39701,
    "c": 0.16969,
    "h": 263.6
  },
  "luminance": 0.05795
}

Semantic roles & 50–950 ramp

primary

#123BA0

secondary

#CAA344

accent

#BD32F6

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #123BA0

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

Preview Lab → · Contrast checker → · Palette generator →