#1C369F#1C369F

#1C369F is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.0% C 0.172 H 266.8°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#1C369F
RGB	rgb(28, 54, 159)
HSL	hsl(228, 70%, 37%)
HSV	hsv(228, 82%, 62%)
CMYK	cmyk(82.4%, 66%, 0%, 37.6%)
CIE-LAB	lab(27.81, 30.77, -59.36)
CIE-LCH	lch(27.81, 66.86, 297.40°)
OKLab	oklab(38.97% -0.0097 -0.1719)
OKLCH	oklch(38.97% 0.172 266.8)
XYZ	xyz(8.0539, 5.3875, 33.4096)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C369F #9F851C

analogous

#1C789F #1C369F #441C9F

triadic

#1C369F #9F1C36 #369F1C

tetradic

#1C369F #9F1C78 #9F851C #1C9F44

square

#1C369F #9F1C78 #9F851C #1C9F44

split-complementary

#1C369F #9F441C #789F1C

monochromatic

#0A1337 #13246B #1C369F #2548D3 #5470E1

Accessibility & contrast

On white

10.11

#1C369F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1C369F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C369F

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C369F	#FFFFFF	#000000	##FFFFFF
##1C369F	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A2

Deuteranopia (green-blind)

#003C9D

Tritanopia (blue-blind)

#005265

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c369f;
/* rgb */ color: rgb(28, 54, 159);
/* oklch */ color: oklch(39.0% 0.172 266.8);

Tailwind

colors: {
  custom: {
    50: '#716dbc',
    500: '#1c369f',
    950: '#000000',
  },
}

SCSS

$custom: #1c369f;
$custom-light: #716dbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c369f",
  "rgb": {
    "r": 28,
    "g": 54,
    "b": 159
  },
  "hsl": {
    "h": 228.092,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38967,
    "c": 0.17217,
    "h": 266.8
  },
  "luminance": 0.05388
}

Semantic roles & 50–950 ramp

primary

#1C369F

secondary

#C4AE53

accent

#CA3BED

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1C369F

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

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