#1B4286#1B4286

#1B4286 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.2% C 0.122 H 260.6°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B4286
RGB	rgb(27, 66, 134)
HSL	hsl(218, 66%, 32%)
HSV	hsv(218, 80%, 53%)
CMYK	cmyk(79.9%, 50.7%, 0%, 47.5%)
CIE-LAB	lab(29.03, 12.47, -42.03)
CIE-LCH	lch(29.03, 43.84, 286.52°)
OKLab	oklab(39.23% -0.0199 -0.1208)
OKLCH	oklch(39.23% 0.122 260.6)
XYZ	xyz(6.7017, 5.8499, 23.3256)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4286 #865F1B

analogous

#1B7886 #1B4286 #2A1B86

triadic

#1B4286 #861B42 #42861B

tetradic

#1B4286 #861B78 #865F1B #1B862A

square

#1B4286 #861B78 #865F1B #1B862A

split-complementary

#1B4286 #862A1B #78861B

monochromatic

#061020 #112953 #1B4286 #255BB9 #4279D9

Accessibility & contrast

On white

9.68

#1B4286 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1B4286 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4286

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4286	#FFFFFF	#000000	##FFFFFF
##1B4286	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4A88

Deuteranopia (green-blind)

#004085

Tritanopia (blue-blind)

#00525D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b4286;
/* rgb */ color: rgb(27, 66, 134);
/* oklch */ color: oklch(39.2% 0.122 260.6);

Tailwind

colors: {
  custom: {
    50: '#6975aa',
    500: '#1b4286',
    950: '#000000',
  },
}

SCSS

$custom: #1b4286;
$custom-light: #6975aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4286",
  "rgb": {
    "r": 27,
    "g": 66,
    "b": 134
  },
  "hsl": {
    "h": 218.131,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.39228,
    "c": 0.12248,
    "h": 260.6
  },
  "luminance": 0.05851
}

Semantic roles & 50–950 ramp

primary

#1B4286

secondary

#B98E44

accent

#AB3EE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1B4286

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

Preview Lab → · Contrast checker → · Palette generator →