#1C29A9#1C29A9

#1C29A9 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.9% C 0.199 H 268.4°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#1C29A9
RGB	rgb(28, 41, 169)
HSL	hsl(234, 72%, 39%)
HSV	hsv(234, 83%, 66%)
CMYK	cmyk(83.4%, 75.7%, 0%, 33.7%)
CIE-LAB	lab(25.85, 42.59, -68.64)
CIE-LCH	lch(25.85, 80.78, 301.82°)
OKLab	oklab(37.86% -0.0054 -0.1989)
OKLCH	oklch(37.86% 0.199 268.4)
XYZ	xyz(8.4308, 4.6963, 37.9906)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C29A9 #A99C1C

analogous

#1C6FA9 #1C29A9 #551CA9

triadic

#1C29A9 #A91C29 #29A91C

tetradic

#1C29A9 #A91C6F #A99C1C #1CA955

square

#1C29A9 #A91C6F #A99C1C #1CA955

split-complementary

#1C29A9 #A9551C #6FA91C

monochromatic

#0B1040 #131C74 #1C29A9 #2738DB #5B68E4

Accessibility & contrast

On white

10.83

#1C29A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1C29A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C29A9

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C29A9	#FFFFFF	#000000	##FFFFFF
##1C29A9	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AD

Deuteranopia (green-blind)

#0036A7

Tritanopia (blue-blind)

#004F67

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1c29a9;
/* rgb */ color: rgb(28, 41, 169);
/* oklch */ color: oklch(37.9% 0.199 268.4);

Tailwind

colors: {
  custom: {
    50: '#7564c4',
    500: '#1c29a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c29a9;
$custom-light: #7564c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c29a9",
  "rgb": {
    "r": 28,
    "g": 41,
    "b": 169
  },
  "hsl": {
    "h": 234.468,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37857,
    "c": 0.199,
    "h": 268.4
  },
  "luminance": 0.04697
}

Semantic roles & 50–950 ramp

primary

#1C29A9

secondary

#C8BE59

accent

#DE39EE

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #1C29A9

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

Preview Lab → · Contrast checker → · Palette generator →