#123A7A#123A7A

#123A7A is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.1% C 0.118 H 259.7°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#123A7A
RGB	rgb(18, 58, 122)
HSL	hsl(217, 74%, 27%)
HSV	hsv(217, 85%, 48%)
CMYK	cmyk(85.2%, 52.5%, 0%, 52.2%)
CIE-LAB	lab(25.44, 12.09, -40.33)
CIE-LCH	lch(25.44, 42.11, 286.68°)
OKLab	oklab(36.12% -0.0211 -0.1162)
OKLCH	oklch(36.12% 0.118 259.7)
XYZ	xyz(5.2741, 4.5592, 19.0106)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A7A #7A5212

analogous

#126E7A #123A7A #1E127A

triadic

#123A7A #7A123A #3A7A12

tetradic

#123A7A #7A126E #7A5212 #127A1E

square

#123A7A #7A126E #7A5212 #127A1E

split-complementary

#123A7A #7A1E12 #6E7A12

monochromatic

#040D1B #0A2145 #123A7A #1A53AF #276EDF

Accessibility & contrast

On white

10.98

#123A7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#123A7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A7A

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A7A	#FFFFFF	#000000	##FFFFFF
##123A7A	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11417C

Deuteranopia (green-blind)

#003879

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #123a7a;
/* rgb */ color: rgb(18, 58, 122);
/* oklch */ color: oklch(36.1% 0.118 259.7);

Tailwind

colors: {
  custom: {
    50: '#646fa1',
    500: '#123a7a',
    950: '#000000',
  },
}

SCSS

$custom: #123a7a;
$custom-light: #646fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#123a7a",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 122
  },
  "hsl": {
    "h": 216.923,
    "s": 74.286,
    "l": 27.451
  },
  "oklch": {
    "l": 0.36116,
    "c": 0.11806,
    "h": 259.7
  },
  "luminance": 0.0456
}

Semantic roles & 50–950 ramp

primary

#123A7A

secondary

#B08238

accent

#A937F1

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #123A7A

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

Preview Lab → · Contrast checker → · Palette generator →