#1C3F86#1C3F86

#1C3F86 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.6% C 0.126 H 262.4°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#1C3F86
RGB	rgb(28, 63, 134)
HSL	hsl(220, 65%, 32%)
HSV	hsv(220, 79%, 53%)
CMYK	cmyk(79.1%, 53%, 0%, 47.5%)
CIE-LAB	lab(28.17, 14.67, -43.41)
CIE-LCH	lch(28.17, 45.82, 288.67°)
OKLab	oklab(38.58% -0.0167 -0.125)
OKLCH	oklch(38.58% 0.126 262.4)
XYZ	xyz(6.5579, 5.5224, 23.2699)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3F86 #86631C

analogous

#1C7486 #1C3F86 #2E1C86

triadic

#1C3F86 #861C3F #3F861C

tetradic

#1C3F86 #861C74 #86631C #1C862E

square

#1C3F86 #861C74 #86631C #1C862E

split-complementary

#1C3F86 #862E1C #74861C

monochromatic

#070F21 #112753 #1C3F86 #2757B9 #4475D8

Accessibility & contrast

On white

9.98

#1C3F86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1C3F86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3F86

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3F86	#FFFFFF	#000000	##FFFFFF
##1C3F86	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104889

Deuteranopia (green-blind)

#003E85

Tritanopia (blue-blind)

#00505C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c3f86;
/* rgb */ color: rgb(28, 63, 134);
/* oklch */ color: oklch(38.6% 0.126 262.4);

Tailwind

colors: {
  custom: {
    50: '#6973aa',
    500: '#1c3f86',
    950: '#000000',
  },
}

SCSS

$custom: #1c3f86;
$custom-light: #6973aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3f86",
  "rgb": {
    "r": 28,
    "g": 63,
    "b": 134
  },
  "hsl": {
    "h": 220.189,
    "s": 65.432,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38583,
    "c": 0.12608,
    "h": 262.4
  },
  "luminance": 0.05523
}

Semantic roles & 50–950 ramp

primary

#1C3F86

secondary

#B99345

accent

#B13FE8

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C3F86

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

Preview Lab → · Contrast checker → · Palette generator →