#1C3E8E#1C3E8E

#1C3E8E is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.0% C 0.139 H 263.8°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#1C3E8E
RGB	rgb(28, 62, 142)
HSL	hsl(222, 67%, 33%)
HSV	hsv(222, 80%, 56%)
CMYK	cmyk(80.3%, 56.3%, 0%, 44.3%)
CIE-LAB	lab(28.50, 18.61, -47.84)
CIE-LCH	lch(28.50, 51.33, 291.25°)
OKLab	oklab(39.02% -0.0151 -0.138)
OKLCH	oklch(39.02% 0.139 263.8)
XYZ	xyz(7.0823, 5.6443, 26.3021)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3E8E #8E6C1C

analogous

#1C778E #1C3E8E #331C8E

triadic

#1C3E8E #8E1C3E #3E8E1C

tetradic

#1C3E8E #8E1C77 #8E6C1C #1C8E33

square

#1C3E8E #8E1C77 #8E6C1C #1C8E33

split-complementary

#1C3E8E #8E331C #778E1C

monochromatic

#081128 #12285B #1C3E8E #2654C1 #4975DB

Accessibility & contrast

On white

9.86

#1C3E8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1C3E8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3E8E

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3E8E	#FFFFFF	#000000	##FFFFFF
##1C3E8E	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004991

Deuteranopia (green-blind)

#003E8C

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1c3e8e;
/* rgb */ color: rgb(28, 62, 142);
/* oklch */ color: oklch(39.0% 0.139 263.8);

Tailwind

colors: {
  custom: {
    50: '#6c72b0',
    500: '#1c3e8e',
    950: '#000000',
  },
}

SCSS

$custom: #1c3e8e;
$custom-light: #6c72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3e8e",
  "rgb": {
    "r": 28,
    "g": 62,
    "b": 142
  },
  "hsl": {
    "h": 222.105,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.39022,
    "c": 0.13883,
    "h": 263.8
  },
  "luminance": 0.05645
}

Semantic roles & 50–950 ramp

primary

#1C3E8E

secondary

#BD9A49

accent

#B73EEA

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #1C3E8E

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

Preview Lab → · Contrast checker → · Palette generator →