#1C387D#1C387D

#1C387D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.3% C 0.122 H 264.4°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#1C387D
RGB	rgb(28, 56, 125)
HSL	hsl(223, 63%, 30%)
HSV	hsv(223, 78%, 49%)
CMYK	cmyk(77.6%, 55.2%, 0%, 51%)
CIE-LAB	lab(25.43, 15.91, -42.23)
CIE-LCH	lch(25.43, 45.13, 290.65°)
OKLab	oklab(36.28% -0.0119 -0.1216)
OKLCH	oklch(36.28% 0.122 264.4)
XYZ	xyz(5.5934, 4.5553, 19.9825)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C387D #7D611C

analogous

#1C697D #1C387D #301C7D

triadic

#1C387D #7D1C38 #387D1C

tetradic

#1C387D #7D1C69 #7D611C #1C7D30

square

#1C387D #7D1C69 #7D611C #1C7D30

split-complementary

#1C387D #7D301C #697D1C

monochromatic

#060B19 #11224B #1C387D #274EAF #3F6AD4

Accessibility & contrast

On white

10.99

#1C387D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1C387D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C387D

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C387D	#FFFFFF	#000000	##FFFFFF
##1C387D	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05417F

Deuteranopia (green-blind)

#00387C

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c387d;
/* rgb */ color: rgb(28, 56, 125);
/* oklch */ color: oklch(36.3% 0.122 264.4);

Tailwind

colors: {
  custom: {
    50: '#686ea3',
    500: '#1c387d',
    950: '#000000',
  },
}

SCSS

$custom: #1c387d;
$custom-light: #686ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c387d",
  "rgb": {
    "r": 28,
    "g": 56,
    "b": 125
  },
  "hsl": {
    "h": 222.68,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.3628,
    "c": 0.12219,
    "h": 264.4
  },
  "luminance": 0.04556
}

Semantic roles & 50–950 ramp

primary

#1C387D

secondary

#B19144

accent

#B741E6

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1C387D

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

Preview Lab → · Contrast checker → · Palette generator →