#1C387C#1C387C

#1C387C is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.2% C 0.121 H 264.3°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#1C387C
RGB	rgb(28, 56, 124)
HSL	hsl(223, 63%, 30%)
HSV	hsv(223, 77%, 49%)
CMYK	cmyk(77.4%, 54.8%, 0%, 51.4%)
CIE-LAB	lab(25.35, 15.51, -41.72)
CIE-LCH	lch(25.35, 44.51, 290.39°)
OKLab	oklab(36.2% -0.012 -0.1201)
OKLCH	oklch(36.2% 0.121 264.3)
XYZ	xyz(5.5299, 4.5299, 19.6478)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C387C #7C601C

analogous

#1C687C #1C387C #301C7C

triadic

#1C387C #7C1C38 #387C1C

tetradic

#1C387C #7C1C68 #7C601C #1C7C30

square

#1C387C #7C1C68 #7C601C #1C7C30

split-complementary

#1C387C #7C301C #687C1C

monochromatic

#060B19 #11214A #1C387C #274FAE #3F6AD4

Accessibility & contrast

On white

11.02

#1C387C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1C387C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C387C

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C387C	#FFFFFF	#000000	##FFFFFF
##1C387C	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07417E

Deuteranopia (green-blind)

#00387B

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c387c;
/* rgb */ color: rgb(28, 56, 124);
/* oklch */ color: oklch(36.2% 0.121 264.3);

Tailwind

colors: {
  custom: {
    50: '#676ea2',
    500: '#1c387c',
    950: '#000000',
  },
}

SCSS

$custom: #1c387c;
$custom-light: #676ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c387c",
  "rgb": {
    "r": 28,
    "g": 56,
    "b": 124
  },
  "hsl": {
    "h": 222.5,
    "s": 63.158,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36197,
    "c": 0.12072,
    "h": 264.3
  },
  "luminance": 0.0453
}

Semantic roles & 50–950 ramp

primary

#1C387C

secondary

#B09044

accent

#B642E6

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1C387C

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

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