#1B198E#1B198E

#1B198E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.181 H 270.9°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#1B198E
RGB	rgb(27, 25, 142)
HSL	hsl(241, 70%, 33%)
HSV	hsv(241, 82%, 56%)
CMYK	cmyk(81%, 82.4%, 0%, 44.3%)
CIE-LAB	lab(19.56, 42.22, -62.52)
CIE-LCH	lch(19.56, 75.44, 304.03°)
OKLab	oklab(32.49% 0.0029 -0.181)
OKLCH	oklch(32.49% 0.181 270.9)
XYZ	xyz(5.6805, 2.8806, 25.8426)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B198E #8C8E19

analogous

#19518E #1B198E #56198E

triadic

#1B198E #8E1B19 #198E1B

tetradic

#1B198E #8E1951 #8C8E19 #198E56

square

#1B198E #8E1951 #8C8E19 #198E56

split-complementary

#1B198E #8E5619 #518E19

monochromatic

#070726 #11105A #1B198E #2522C2 #4643DE

Accessibility & contrast

On white

13.32

#1B198E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B198E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B198E

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B198E	#FFFFFF	#000000	##FFFFFF
##1B198E	1.00	13.32	1.58	13.32
#FFFFFF	13.32	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#00298C

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1b198e;
/* rgb */ color: rgb(27, 25, 142);
/* oklch */ color: oklch(32.5% 0.181 270.9);

Tailwind

colors: {
  custom: {
    50: '#6f59b0',
    500: '#1b198e',
    950: '#000000',
  },
}

SCSS

$custom: #1b198e;
$custom-light: #6f59b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b198e",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 142
  },
  "hsl": {
    "h": 241.026,
    "s": 70.06,
    "l": 32.745
  },
  "oklch": {
    "l": 0.32492,
    "c": 0.181,
    "h": 270.9
  },
  "luminance": 0.02881
}

Semantic roles & 50–950 ramp

primary

#1B198E

secondary

#BDBF44

accent

#ED3BEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1B198E

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

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