#1C387B#1C387B

#1C387B is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.1% C 0.119 H 264.2°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#1C387B
RGB	rgb(28, 56, 123)
HSL	hsl(222, 63%, 30%)
HSV	hsv(222, 77%, 48%)
CMYK	cmyk(77.2%, 54.5%, 0%, 51.8%)
CIE-LAB	lab(25.27, 15.10, -41.22)
CIE-LCH	lch(25.27, 43.90, 290.12°)
OKLab	oklab(36.12% -0.0121 -0.1186)
OKLCH	oklch(36.12% 0.119 264.2)
XYZ	xyz(5.4669, 4.5047, 19.3164)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C387B #7B5F1C

analogous

#1C687B #1C387B #301C7B

triadic

#1C387B #7B1C38 #387B1C

tetradic

#1C387B #7B1C68 #7B5F1C #1C7B30

square

#1C387B #7B1C68 #7B5F1C #1C7B30

split-complementary

#1C387B #7B301C #687B1C

monochromatic

#060B19 #112149 #1C387B #274FAD #3E6AD3

Accessibility & contrast

On white

11.05

#1C387B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1C387B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C387B

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C387B	#FFFFFF	#000000	##FFFFFF
##1C387B	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09417D

Deuteranopia (green-blind)

#00387A

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c387b;
/* rgb */ color: rgb(28, 56, 123);
/* oklch */ color: oklch(36.1% 0.119 264.2);

Tailwind

colors: {
  custom: {
    50: '#676ea2',
    500: '#1c387b',
    950: '#000000',
  },
}

SCSS

$custom: #1c387b;
$custom-light: #676ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c387b",
  "rgb": {
    "r": 28,
    "g": 56,
    "b": 123
  },
  "hsl": {
    "h": 222.316,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36115,
    "c": 0.11925,
    "h": 264.2
  },
  "luminance": 0.04505
}

Semantic roles & 50–950 ramp

primary

#1C387B

secondary

#AF8F44

accent

#B642E6

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1C387B

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

Preview Lab → · Contrast checker → · Palette generator →