#1C3E9F#1C3E9F

#1C3E9F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.5% C 0.162 H 265.0°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#1C3E9F
RGB	rgb(28, 62, 159)
HSL	hsl(224, 70%, 37%)
HSV	hsv(224, 82%, 62%)
CMYK	cmyk(82.4%, 61%, 0%, 37.6%)
CIE-LAB	lab(29.90, 25.39, -55.94)
CIE-LCH	lch(29.90, 61.43, 294.41°)
OKLab	oklab(40.51% -0.0142 -0.1618)
OKLCH	oklch(40.51% 0.162 265)
XYZ	xyz(8.4573, 6.1943, 33.5440)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3E9F #9F7D1C

analogous

#1C809F #1C3E9F #3B1C9F

triadic

#1C3E9F #9F1C3E #3E9F1C

tetradic

#1C3E9F #9F1C80 #9F7D1C #1C9F3B

square

#1C3E9F #9F1C80 #9F7D1C #1C9F3B

split-complementary

#1C3E9F #9F3B1C #809F1C

monochromatic

#0A1537 #132A6B #1C3E9F #2552D3 #5479E1

Accessibility & contrast

On white

9.38

#1C3E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1C3E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3E9F

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3E9F	#FFFFFF	#000000	##FFFFFF
##1C3E9F	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA2

Deuteranopia (green-blind)

#00419D

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1c3e9f;
/* rgb */ color: rgb(28, 62, 159);
/* oklch */ color: oklch(40.5% 0.162 265.0);

Tailwind

colors: {
  custom: {
    50: '#7072bc',
    500: '#1c3e9f',
    950: '#000000',
  },
}

SCSS

$custom: #1c3e9f;
$custom-light: #7072bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3e9f",
  "rgb": {
    "r": 28,
    "g": 62,
    "b": 159
  },
  "hsl": {
    "h": 224.427,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.40512,
    "c": 0.16242,
    "h": 265
  },
  "luminance": 0.06195
}

Semantic roles & 50–950 ramp

primary

#1C3E9F

secondary

#C4A753

accent

#BF3BED

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1C3E9F

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

Preview Lab → · Contrast checker → · Palette generator →