#191D4B#191D4B

#191D4B is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.084 H 275.1°. Best body text is #FFFFFF at 15.93:1 contrast (WCAG AA passes).

Color values

HEX	#191D4B
RGB	rgb(25, 29, 75)
HSL	hsl(235, 50%, 20%)
HSV	hsv(235, 67%, 29%)
CMYK	cmyk(66.7%, 61.3%, 0%, 70.6%)
CIE-LAB	lab(13.19, 14.71, -29.22)
CIE-LCH	lch(13.19, 32.72, 296.72°)
OKLab	oklab(25.74% 0.0074 -0.0839)
OKLCH	oklch(25.74% 0.084 275.1)
XYZ	xyz(2.1099, 1.5932, 6.8516)
Luminance	0.0159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.68

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191D4B #4B4719

analogous

#19364B #191D4B #2E194B

triadic

#191D4B #4B191D #1D4B19

tetradic

#191D4B #4B1936 #4B4719 #194B2E

square

#191D4B #4B1936 #4B4719 #194B2E

split-complementary

#191D4B #4B2E19 #364B19

monochromatic

#080917 #0A0B1D #191D4B #282F79 #3840A7

Accessibility & contrast

On white

15.93

#191D4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#191D4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191D4B

15.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191D4B	#FFFFFF	#000000	##FFFFFF
##191D4B	1.00	15.93	1.32	15.93
#FFFFFF	15.93	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00244D

Deuteranopia (green-blind)

#00204A

Tritanopia (blue-blind)

#002830

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #191d4b;
/* rgb */ color: rgb(25, 29, 75);
/* oklch */ color: oklch(25.7% 0.084 275.1);

Tailwind

colors: {
  custom: {
    50: '#5c587e',
    500: '#191d4b',
    950: '#000000',
  },
}

SCSS

$custom: #191d4b;
$custom-light: #5c587e;
$custom-dark: #000000;

JSON

{
  "hex": "#191d4b",
  "rgb": {
    "r": 25,
    "g": 29,
    "b": 75
  },
  "hsl": {
    "h": 235.2,
    "s": 50,
    "l": 19.608
  },
  "oklch": {
    "l": 0.25741,
    "c": 0.08419,
    "h": 275.1
  },
  "luminance": 0.01593
}

Semantic roles & 50–950 ramp

primary

#191D4B

secondary

#817C3E

accent

#CE4EDA

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #191D4B

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

Preview Lab → · Contrast checker → · Palette generator →