#1C1EB3#1C1EB3

#1C1EB3 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.6% C 0.220 H 268.8°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#1C1EB3
RGB	rgb(28, 30, 179)
HSL	hsl(239, 73%, 41%)
HSV	hsv(239, 84%, 70%)
CMYK	cmyk(84.4%, 83.2%, 0%, 29.8%)
CIE-LAB	lab(25.04, 51.64, -75.99)
CIE-LCH	lch(25.04, 91.88, 304.20°)
OKLab	oklab(37.63% -0.0048 -0.22)
OKLCH	oklch(37.63% 0.22 268.8)
XYZ	xyz(9.0771, 4.4290, 43.0156)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1EB3 #B3B11C

analogous

#1C6AB3 #1C1EB3 #651CB3

triadic

#1C1EB3 #B31C1E #1EB31C

tetradic

#1C1EB3 #B31C6A #B3B11C #1CB365

square

#1C1EB3 #B31C6A #B3B11C #1CB365

split-complementary

#1C1EB3 #B3651C #6AB31C

monochromatic

#0B0C49 #14157E #1C1EB3 #2E30DE #6365E7

Accessibility & contrast

On white

11.13

#1C1EB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1C1EB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1EB3

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1EB3	#FFFFFF	#000000	##FFFFFF
##1C1EB3	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B7

Deuteranopia (green-blind)

#0033B1

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c1eb3;
/* rgb */ color: rgb(28, 30, 179);
/* oklch */ color: oklch(37.6% 0.220 268.8);

Tailwind

colors: {
  custom: {
    50: '#785ecb',
    500: '#1c1eb3',
    950: '#000000',
  },
}

SCSS

$custom: #1c1eb3;
$custom-light: #785ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1eb3",
  "rgb": {
    "r": 28,
    "g": 30,
    "b": 179
  },
  "hsl": {
    "h": 239.205,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.3763,
    "c": 0.22008,
    "h": 268.8
  },
  "luminance": 0.0443
}

Semantic roles & 50–950 ramp

primary

#1C1EB3

secondary

#CBCA5F

accent

#ED38F0

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #1C1EB3

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

Preview Lab → · Contrast checker → · Palette generator →