#1C106E#1C106E

#1C106E is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.6% C 0.149 H 276.1°. Best body text is #FFFFFF at 15.57:1 contrast (WCAG AA passes).

Color values

HEX	#1C106E
RGB	rgb(28, 16, 110)
HSL	hsl(248, 75%, 25%)
HSV	hsv(248, 85%, 43%)
CMYK	cmyk(74.5%, 85.5%, 0%, 56.9%)
CIE-LAB	lab(14.08, 36.36, -51.21)
CIE-LCH	lch(14.08, 62.81, 305.37°)
OKLab	oklab(27.55% 0.0158 -0.148)
OKLCH	oklch(27.55% 0.149 276.1)
XYZ	xyz(3.4777, 1.7429, 14.9020)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C106E #626E10

analogous

#10336E #1C106E #4B106E

triadic

#1C106E #6E1C10 #106E1C

tetradic

#1C106E #6E1033 #626E10 #106E4B

square

#1C106E #6E1033 #626E10 #106E4B

split-complementary

#1C106E #6E4B10 #336E10

monochromatic

#07041B #0E0839 #1C106E #2A18A3 #3720D9

Accessibility & contrast

On white

15.57

#1C106E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#1C106E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C106E

15.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C106E	#FFFFFF	#000000	##FFFFFF
##1C106E	1.00	15.57	1.35	15.57
#FFFFFF	15.57	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002871

Deuteranopia (green-blind)

#00206C

Tritanopia (blue-blind)

#002E40

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1c106e;
/* rgb */ color: rgb(28, 16, 110);
/* oklch */ color: oklch(27.6% 0.149 276.1);

Tailwind

colors: {
  custom: {
    50: '#675299',
    500: '#1c106e',
    950: '#000000',
  },
}

SCSS

$custom: #1c106e;
$custom-light: #675299;
$custom-dark: #000000;

JSON

{
  "hex": "#1c106e",
  "rgb": {
    "r": 28,
    "g": 16,
    "b": 110
  },
  "hsl": {
    "h": 247.66,
    "s": 74.603,
    "l": 24.706
  },
  "oklch": {
    "l": 0.2755,
    "c": 0.14887,
    "h": 276.1
  },
  "luminance": 0.01743
}

Semantic roles & 50–950 ramp

primary

#1C106E

secondary

#97A634

accent

#F137D9

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1C106E

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

Preview Lab → · Contrast checker → · Palette generator →