#184D9B#184D9B

#184D9B is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.3% C 0.139 H 258.7°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#184D9B
RGB	rgb(24, 77, 155)
HSL	hsl(216, 73%, 35%)
HSV	hsv(216, 85%, 61%)
CMYK	cmyk(84.5%, 50.3%, 0%, 39.2%)
CIE-LAB	lab(33.71, 13.18, -47.34)
CIE-LCH	lch(33.71, 49.15, 285.56°)
OKLab	oklab(43.26% -0.0272 -0.1363)
OKLCH	oklch(43.26% 0.139 258.7)
XYZ	xyz(8.9448, 7.8674, 32.0511)
Luminance	0.0787 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#184D9B #9B6618

analogous

#188E9B #184D9B #24189B

triadic

#184D9B #9B184D #4D9B18

tetradic

#184D9B #9B188E #9B6618 #189B24

square

#184D9B #9B188E #9B6618 #189B24

split-complementary

#184D9B #9B2418 #8E9B18

monochromatic

#081831 #103366 #184D9B #2067D0 #4A88E3

Accessibility & contrast

On white

8.16

#184D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#184D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #184D9B

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##184D9B	#FFFFFF	#000000	##FFFFFF
##184D9B	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D559E

Deuteranopia (green-blind)

#004A99

Tritanopia (blue-blind)

#00606C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #184d9b;
/* rgb */ color: rgb(24, 77, 155);
/* oklch */ color: oklch(43.3% 0.139 258.7);

Tailwind

colors: {
  custom: {
    50: '#6d7eb9',
    500: '#184d9b',
    950: '#000000',
  },
}

SCSS

$custom: #184d9b;
$custom-light: #6d7eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#184d9b",
  "rgb": {
    "r": 24,
    "g": 77,
    "b": 155
  },
  "hsl": {
    "h": 215.725,
    "s": 73.184,
    "l": 35.098
  },
  "oklch": {
    "l": 0.43263,
    "c": 0.139,
    "h": 258.7
  },
  "luminance": 0.07869
}

Semantic roles & 50–950 ramp

primary

#184D9B

secondary

#C5934A

accent

#A538F0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #184D9B

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

Preview Lab → · Contrast checker → · Palette generator →