#1C105A#1C105A

#1C105A is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.2% C 0.123 H 280.2°. Best body text is #FFFFFF at 16.52:1 contrast (WCAG AA passes).

Color values

HEX	#1C105A
RGB	rgb(28, 16, 90)
HSL	hsl(250, 70%, 21%)
HSV	hsv(250, 82%, 35%)
CMYK	cmyk(68.9%, 82.2%, 0%, 64.7%)
CIE-LAB	lab(11.66, 29.66, -41.95)
CIE-LCH	lch(11.66, 51.37, 305.27°)
OKLab	oklab(25.15% 0.0219 -0.1211)
OKLCH	oklch(25.15% 0.123 280.2)
XYZ	xyz(2.5091, 1.3554, 9.8003)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C105A #4E5A10

analogous

#10295A #1C105A #41105A

triadic

#1C105A #5A1C10 #105A1C

tetradic

#1C105A #5A1029 #4E5A10 #105A41

square

#1C105A #5A1029 #4E5A10 #105A41

split-complementary

#1C105A #5A4110 #295A10

monochromatic

#08051A #0C0726 #1C105A #2C198E #3C22C2

Accessibility & contrast

On white

16.52

#1C105A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#1C105A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C105A

16.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C105A	#FFFFFF	#000000	##FFFFFF
##1C105A	1.00	16.52	1.27	16.52
#FFFFFF	16.52	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00215C

Deuteranopia (green-blind)

#001C59

Tritanopia (blue-blind)

#002634

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #1c105a;
/* rgb */ color: rgb(28, 16, 90);
/* oklch */ color: oklch(25.2% 0.123 280.2);

Tailwind

colors: {
  custom: {
    50: '#62508a',
    500: '#1c105a',
    950: '#000000',
  },
}

SCSS

$custom: #1c105a;
$custom-light: #62508a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c105a",
  "rgb": {
    "r": 28,
    "g": 16,
    "b": 90
  },
  "hsl": {
    "h": 249.73,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.25154,
    "c": 0.12303,
    "h": 280.2
  },
  "luminance": 0.01356
}

Semantic roles & 50–950 ramp

primary

#1C105A

secondary

#849333

accent

#ED3BD0

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1C105A

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

Preview Lab → · Contrast checker → · Palette generator →