#123DA0#123DA0

#123DA0 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.167 H 263.2°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#123DA0
RGB	rgb(18, 61, 160)
HSL	hsl(222, 80%, 35%)
HSV	hsv(222, 89%, 63%)
CMYK	cmyk(88.8%, 61.9%, 0%, 37.3%)
CIE-LAB	lab(29.42, 25.70, -57.34)
CIE-LCH	lch(29.42, 62.84, 294.14°)
OKLab	oklab(40.1% -0.0199 -0.166)
OKLCH	oklch(40.1% 0.167 263.2)
XYZ	xyz(8.2611, 6.0031, 33.9742)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123DA0 #A07512

analogous

#1284A0 #123DA0 #2E12A0

triadic

#123DA0 #A0123D #3DA012

tetradic

#123DA0 #A01284 #A07512 #12A02E

square

#123DA0 #A01284 #A07512 #12A02E

split-complementary

#123DA0 #A02E12 #84A012

monochromatic

#061332 #0C2869 #123DA0 #1852D7 #4375EA

Accessibility & contrast

On white

9.54

#123DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#123DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123DA0

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123DA0	#FFFFFF	#000000	##FFFFFF
##123DA0	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#003F9E

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #123da0;
/* rgb */ color: rgb(18, 61, 160);
/* oklch */ color: oklch(40.1% 0.167 263.2);

Tailwind

colors: {
  custom: {
    50: '#6e72bd',
    500: '#123da0',
    950: '#000000',
  },
}

SCSS

$custom: #123da0;
$custom-light: #6e72bd;
$custom-dark: #000000;

JSON

{
  "hex": "#123da0",
  "rgb": {
    "r": 18,
    "g": 61,
    "b": 160
  },
  "hsl": {
    "h": 221.831,
    "s": 79.775,
    "l": 34.902
  },
  "oklch": {
    "l": 0.40099,
    "c": 0.16724,
    "h": 263.2
  },
  "luminance": 0.06004
}

Semantic roles & 50–950 ramp

primary

#123DA0

secondary

#CAA144

accent

#BB32F6

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #123DA0

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

Preview Lab → · Contrast checker → · Palette generator →