#18276B#18276B

#18276B is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.8% C 0.120 H 268.7°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#18276B
RGB	rgb(24, 39, 107)
HSL	hsl(229, 63%, 26%)
HSV	hsv(229, 78%, 42%)
CMYK	cmyk(77.6%, 63.6%, 0%, 58%)
CIE-LAB	lab(18.83, 20.17, -41.45)
CIE-LCH	lch(18.83, 46.10, 295.95°)
OKLab	oklab(30.8% -0.0027 -0.1197)
OKLCH	oklch(30.8% 0.12 268.7)
XYZ	xyz(3.7551, 2.7064, 14.2315)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18276B #6B5C18

analogous

#18506B #18276B #32186B

triadic

#18276B #6B1827 #276B18

tetradic

#18276B #6B1850 #6B5C18 #186B32

square

#18276B #6B1850 #6B5C18 #186B32

split-complementary

#18276B #6B3218 #506B18

monochromatic

#060919 #0D1539 #18276B #23399D #2E4BCF

Accessibility & contrast

On white

13.62

#18276B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#18276B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18276B

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18276B	#FFFFFF	#000000	##FFFFFF
##18276B	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326D

Deuteranopia (green-blind)

#002A6A

Tritanopia (blue-blind)

#003845

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #18276b;
/* rgb */ color: rgb(24, 39, 107);
/* oklch */ color: oklch(30.8% 0.120 268.7);

Tailwind

colors: {
  custom: {
    50: '#636096',
    500: '#18276b',
    950: '#000000',
  },
}

SCSS

$custom: #18276b;
$custom-light: #636096;
$custom-dark: #000000;

JSON

{
  "hex": "#18276b",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 107
  },
  "hsl": {
    "h": 229.157,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.30801,
    "c": 0.11972,
    "h": 268.7
  },
  "luminance": 0.02707
}

Semantic roles & 50–950 ramp

primary

#18276B

secondary

#A18F3E

accent

#C941E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #18276B

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

Preview Lab → · Contrast checker → · Palette generator →