#1C1D9F#1C1D9F

#1C1D9F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.1% C 0.198 H 269.8°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#1C1D9F
RGB	rgb(28, 29, 159)
HSL	hsl(240, 70%, 37%)
HSV	hsv(240, 82%, 62%)
CMYK	cmyk(82.4%, 81.8%, 0%, 37.6%)
CIE-LAB	lab(22.40, 45.78, -68.29)
CIE-LCH	lch(22.40, 82.22, 303.84°)
OKLab	oklab(35.09% -0.0006 -0.1977)
OKLCH	oklch(35.09% 0.198 269.8)
XYZ	xyz(7.1741, 3.6280, 33.1163)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1D9F #9F9E1C

analogous

#1C5F9F #1C1D9F #5D1C9F

triadic

#1C1D9F #9F1C1D #1D9F1C

tetradic

#1C1D9F #9F1C5F #9F9E1C #1C9F5D

square

#1C1D9F #9F1C5F #9F9E1C #1C9F5D

split-complementary

#1C1D9F #9F5D1C #5F9F1C

monochromatic

#0A0A37 #13146B #1C1D9F #2526D3 #5456E1

Accessibility & contrast

On white

12.17

#1C1D9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1C1D9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1D9F

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1D9F	#FFFFFF	#000000	##FFFFFF
##1C1D9F	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA3

Deuteranopia (green-blind)

#002F9D

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1c1d9f;
/* rgb */ color: rgb(28, 29, 159);
/* oklch */ color: oklch(35.1% 0.198 269.8);

Tailwind

colors: {
  custom: {
    50: '#735cbd',
    500: '#1c1d9f',
    950: '#000000',
  },
}

SCSS

$custom: #1c1d9f;
$custom-light: #735cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1d9f",
  "rgb": {
    "r": 28,
    "g": 29,
    "b": 159
  },
  "hsl": {
    "h": 239.542,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35089,
    "c": 0.19775,
    "h": 269.8
  },
  "luminance": 0.03629
}

Semantic roles & 50–950 ramp

primary

#1C1D9F

secondary

#C4C353

accent

#EB3BED

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1C1D9F

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

Preview Lab → · Contrast checker → · Palette generator →