#1C409C#1C409C

#1C409C is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.156 H 264.3°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#1C409C
RGB	rgb(28, 64, 156)
HSL	hsl(223, 70%, 36%)
HSV	hsv(223, 82%, 61%)
CMYK	cmyk(82.1%, 59%, 0%, 38.8%)
CIE-LAB	lab(30.19, 22.84, -53.65)
CIE-LCH	lch(30.19, 58.31, 293.06°)
OKLab	oklab(40.65% -0.0155 -0.155)
OKLCH	oklch(40.65% 0.156 264.3)
XYZ	xyz(8.3109, 6.3130, 32.2265)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C409C #9C781C

analogous

#1C809C #1C409C #381C9C

triadic

#1C409C #9C1C40 #409C1C

tetradic

#1C409C #9C1C80 #9C781C #1C9C38

square

#1C409C #9C1C80 #9C781C #1C9C38

split-complementary

#1C409C #9C381C #809C1C

monochromatic

#091534 #132B68 #1C409C #2555D0 #527AE0

Accessibility & contrast

On white

9.28

#1C409C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1C409C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C409C

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C409C	#FFFFFF	#000000	##FFFFFF
##1C409C	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9F

Deuteranopia (green-blind)

#00419A

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c409c;
/* rgb */ color: rgb(28, 64, 156);
/* oklch */ color: oklch(40.7% 0.156 264.3);

Tailwind

colors: {
  custom: {
    50: '#6f74ba',
    500: '#1c409c',
    950: '#000000',
  },
}

SCSS

$custom: #1c409c;
$custom-light: #6f74ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1c409c",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 156
  },
  "hsl": {
    "h": 223.125,
    "s": 69.565,
    "l": 36.078
  },
  "oklch": {
    "l": 0.40651,
    "c": 0.15582,
    "h": 264.3
  },
  "luminance": 0.06314
}

Semantic roles & 50–950 ramp

primary

#1C409C

secondary

#C3A351

accent

#BB3BEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1C409C

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

Preview Lab → · Contrast checker → · Palette generator →