#1B498C#1B498C

#1B498C is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.3% C 0.122 H 258.3°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#1B498C
RGB	rgb(27, 73, 140)
HSL	hsl(216, 68%, 33%)
HSV	hsv(216, 81%, 55%)
CMYK	cmyk(80.7%, 47.9%, 0%, 45.1%)
CIE-LAB	lab(31.56, 10.10, -41.67)
CIE-LCH	lch(31.56, 42.87, 283.63°)
OKLab	oklab(41.3% -0.0248 -0.1196)
OKLCH	oklch(41.3% 0.122 258.3)
XYZ	xyz(7.5664, 6.8907, 25.7371)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B498C #8C5E1B

analogous

#1B828C #1B498C #251B8C

triadic

#1B498C #8C1B49 #498C1B

tetradic

#1B498C #8C1B82 #8C5E1B #1B8C25

square

#1B498C #8C1B82 #8C5E1B #1B8C25

split-complementary

#1B498C #8C251B #828C1B

monochromatic

#071325 #112E59 #1B498C #2564BF #4683DB

Accessibility & contrast

On white

8.83

#1B498C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1B498C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B498C

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B498C	#FFFFFF	#000000	##FFFFFF
##1B498C	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25508F

Deuteranopia (green-blind)

#05458B

Tritanopia (blue-blind)

#005963

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b498c;
/* rgb */ color: rgb(27, 73, 140);
/* oklch */ color: oklch(41.3% 0.122 258.3);

Tailwind

colors: {
  custom: {
    50: '#6a7bae',
    500: '#1b498c',
    950: '#000000',
  },
}

SCSS

$custom: #1b498c;
$custom-light: #6a7bae;
$custom-dark: #000000;

JSON

{
  "hex": "#1b498c",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 140
  },
  "hsl": {
    "h": 215.575,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.41303,
    "c": 0.12218,
    "h": 258.3
  },
  "luminance": 0.06892
}

Semantic roles & 50–950 ramp

primary

#1B498C

secondary

#BD8C46

accent

#A43DEB

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B498C

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

Preview Lab → · Contrast checker → · Palette generator →