#1C389D#1C389D

#1C389D is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.2% C 0.167 H 266.3°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#1C389D
RGB	rgb(28, 56, 157)
HSL	hsl(227, 70%, 36%)
HSV	hsv(227, 82%, 62%)
CMYK	cmyk(82.2%, 64.3%, 0%, 38.4%)
CIE-LAB	lab(28.14, 28.66, -57.61)
CIE-LCH	lch(28.14, 64.35, 296.45°)
OKLab	oklab(39.15% -0.0107 -0.1668)
OKLCH	oklch(39.15% 0.167 266.3)
XYZ	xyz(7.9767, 5.5086, 32.5346)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C389D #9D811C

analogous

#1C799D #1C389D #411C9D

triadic

#1C389D #9D1C38 #389D1C

tetradic

#1C389D #9D1C79 #9D811C #1C9D41

square

#1C389D #9D1C79 #9D811C #1C9D41

split-complementary

#1C389D #9D411C #799D1C

monochromatic

#091335 #132569 #1C389D #254BD1 #5372E0

Accessibility & contrast

On white

9.99

#1C389D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1C389D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C389D

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C389D	#FFFFFF	#000000	##FFFFFF
##1C389D	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A0

Deuteranopia (green-blind)

#003C9B

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c389d;
/* rgb */ color: rgb(28, 56, 157);
/* oklch */ color: oklch(39.2% 0.167 266.3);

Tailwind

colors: {
  custom: {
    50: '#706ebb',
    500: '#1c389d',
    950: '#000000',
  },
}

SCSS

$custom: #1c389d;
$custom-light: #706ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c389d",
  "rgb": {
    "r": 28,
    "g": 56,
    "b": 157
  },
  "hsl": {
    "h": 226.977,
    "s": 69.73,
    "l": 36.275
  },
  "oklch": {
    "l": 0.39151,
    "c": 0.1671,
    "h": 266.3
  },
  "luminance": 0.0551
}

Semantic roles & 50–950 ramp

primary

#1C389D

secondary

#C3AB51

accent

#C63BED

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1C389D

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

Preview Lab → · Contrast checker → · Palette generator →