#1B124F#1B124F

#1B124F is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 24.1% C 0.106 H 281.7°. Best body text is #FFFFFF at 16.85:1 contrast (WCAG AA passes).

Color values

HEX	#1B124F
RGB	rgb(27, 18, 79)
HSL	hsl(249, 63%, 19%)
HSV	hsv(249, 77%, 31%)
CMYK	cmyk(65.8%, 77.2%, 0%, 69%)
CIE-LAB	lab(10.78, 24.42, -35.90)
CIE-LCH	lch(10.78, 43.42, 304.22°)
OKLab	oklab(24.14% 0.0215 -0.1035)
OKLCH	oklch(24.14% 0.106 281.7)
XYZ	xyz(2.0791, 1.2300, 7.5235)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B124F #464F12

analogous

#12284F #1B124F #3A124F

triadic

#1B124F #4F1B12 #124F1B

tetradic

#1B124F #4F1228 #464F12 #124F3A

square

#1B124F #4F1228 #464F12 #124F3A

split-complementary

#1B124F #4F3A12 #284F12

monochromatic

#090619 #0A071D #1B124F #2C1D81 #3D29B3

Accessibility & contrast

On white

16.85

#1B124F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#1B124F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B124F

16.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B124F	#FFFFFF	#000000	##FFFFFF
##1B124F	1.00	16.85	1.25	16.85
#FFFFFF	16.85	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F51

Deuteranopia (green-blind)

#001B4E

Tritanopia (blue-blind)

#00222F

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #1b124f;
/* rgb */ color: rgb(27, 18, 79);
/* oklch */ color: oklch(24.1% 0.106 281.7);

Tailwind

colors: {
  custom: {
    50: '#5f5181',
    500: '#1b124f',
    950: '#000000',
  },
}

SCSS

$custom: #1b124f;
$custom-light: #5f5181;
$custom-dark: #000000;

JSON

{
  "hex": "#1b124f",
  "rgb": {
    "r": 27,
    "g": 18,
    "b": 79
  },
  "hsl": {
    "h": 248.852,
    "s": 62.887,
    "l": 19.02
  },
  "oklch": {
    "l": 0.24138,
    "c": 0.10566,
    "h": 281.7
  },
  "luminance": 0.0123
}

Semantic roles & 50–950 ramp

primary

#1B124F

secondary

#7C8835

accent

#E642CE

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1B124F

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

Preview Lab → · Contrast checker → · Palette generator →