#1B298D#1B298D

#1B298D is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.8% C 0.164 H 269.0°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B298D
RGB	rgb(27, 41, 141)
HSL	hsl(233, 68%, 33%)
HSV	hsv(233, 81%, 55%)
CMYK	cmyk(80.9%, 70.9%, 0%, 44.7%)
CIE-LAB	lab(22.80, 32.42, -56.54)
CIE-LCH	lch(22.80, 65.18, 299.83°)
OKLab	oklab(34.76% -0.0029 -0.1638)
OKLCH	oklch(34.76% 0.164 269)
XYZ	xyz(6.0510, 3.7413, 25.5974)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B298D #8D7F1B

analogous

#1B628D #1B298D #461B8D

triadic

#1B298D #8D1B29 #298D1B

tetradic

#1B298D #8D1B62 #8D7F1B #1B8D46

square

#1B298D #8D1B62 #8D7F1B #1B8D46

split-complementary

#1B298D #8D461B #628D1B

monochromatic

#070B26 #111A5A #1B298D #2538C0 #4759DC

Accessibility & contrast

On white

12.01

#1B298D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1B298D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B298D

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B298D	#FFFFFF	#000000	##FFFFFF
##1B298D	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00318B

Tritanopia (blue-blind)

#004557

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b298d;
/* rgb */ color: rgb(27, 41, 141);
/* oklch */ color: oklch(34.8% 0.164 269.0);

Tailwind

colors: {
  custom: {
    50: '#6d63af',
    500: '#1b298d',
    950: '#000000',
  },
}

SCSS

$custom: #1b298d;
$custom-light: #6d63af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b298d",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 141
  },
  "hsl": {
    "h": 232.632,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.3476,
    "c": 0.16379,
    "h": 269
  },
  "luminance": 0.03742
}

Semantic roles & 50–950 ramp

primary

#1B298D

secondary

#BDAF46

accent

#D53DEB

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#080511

muted

#7B7980

Preview Lab

Preview with #1B298D

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

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