#1B298C#1B298C

#1B298C is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.7% C 0.162 H 269.0°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B298C
RGB	rgb(27, 41, 140)
HSL	hsl(233, 68%, 33%)
HSV	hsv(233, 81%, 55%)
CMYK	cmyk(80.7%, 70.7%, 0%, 45.1%)
CIE-LAB	lab(22.69, 32.04, -56.09)
CIE-LCH	lch(22.69, 64.60, 299.74°)
OKLab	oklab(34.66% -0.0028 -0.1624)
OKLCH	oklch(34.66% 0.162 269)
XYZ	xyz(5.9769, 3.7117, 25.2073)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B298C #8C7E1B

analogous

#1B628C #1B298C #451B8C

triadic

#1B298C #8C1B29 #298C1B

tetradic

#1B298C #8C1B62 #8C7E1B #1B8C45

square

#1B298C #8C1B62 #8C7E1B #1B8C45

split-complementary

#1B298C #8C451B #628C1B

monochromatic

#070B25 #111A59 #1B298C #2538BF #4659DB

Accessibility & contrast

On white

12.05

#1B298C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1B298C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B298C

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B298C	#FFFFFF	#000000	##FFFFFF
##1B298C	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8F

Deuteranopia (green-blind)

#00318A

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b298c;
/* rgb */ color: rgb(27, 41, 140);
/* oklch */ color: oklch(34.7% 0.162 269.0);

Tailwind

colors: {
  custom: {
    50: '#6d63af',
    500: '#1b298c',
    950: '#000000',
  },
}

SCSS

$custom: #1b298c;
$custom-light: #6d63af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b298c",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 140
  },
  "hsl": {
    "h": 232.566,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.34655,
    "c": 0.16246,
    "h": 269
  },
  "luminance": 0.03712
}

Semantic roles & 50–950 ramp

primary

#1B298C

secondary

#BDAE46

accent

#D53DEB

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#080510

muted

#7B797F

Preview Lab

Preview with #1B298C

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

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