#1B498E#1B498E

#1B498E is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.5% C 0.125 H 258.7°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#1B498E
RGB	rgb(27, 73, 142)
HSL	hsl(216, 68%, 33%)
HSV	hsv(216, 81%, 56%)
CMYK	cmyk(81%, 48.6%, 0%, 44.3%)
CIE-LAB	lab(31.69, 10.92, -42.67)
CIE-LCH	lch(31.69, 44.05, 284.35°)
OKLab	oklab(41.45% -0.0244 -0.1226)
OKLCH	oklch(41.45% 0.125 258.7)
XYZ	xyz(7.7152, 6.9502, 26.5208)
Luminance	0.0695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B498E #8E601B

analogous

#1B828E #1B498E #261B8E

triadic

#1B498E #8E1B49 #498E1B

tetradic

#1B498E #8E1B82 #8E601B #1B8E26

square

#1B498E #8E1B82 #8E601B #1B8E26

split-complementary

#1B498E #8E261B #828E1B

monochromatic

#071427 #112F5B #1B498E #2563C1 #4783DC

Accessibility & contrast

On white

8.79

#1B498E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1B498E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B498E

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B498E	#FFFFFF	#000000	##FFFFFF
##1B498E	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225091

Deuteranopia (green-blind)

#00468D

Tritanopia (blue-blind)

#005A64

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b498e;
/* rgb */ color: rgb(27, 73, 142);
/* oklch */ color: oklch(41.5% 0.125 258.7);

Tailwind

colors: {
  custom: {
    50: '#6b7baf',
    500: '#1b498e',
    950: '#000000',
  },
}

SCSS

$custom: #1b498e;
$custom-light: #6b7baf;
$custom-dark: #000000;

JSON

{
  "hex": "#1b498e",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 142
  },
  "hsl": {
    "h": 216,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.41452,
    "c": 0.12501,
    "h": 258.7
  },
  "luminance": 0.06951
}

Semantic roles & 50–950 ramp

primary

#1B498E

secondary

#BE8E47

accent

#A53DEB

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1B498E

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

Preview Lab → · Contrast checker → · Palette generator →