#1D304F#1D304F

#1D304F is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.0% C 0.061 H 259.8°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#1D304F
RGB	rgb(29, 48, 79)
HSL	hsl(217, 46%, 21%)
HSV	hsv(217, 63%, 31%)
CMYK	cmyk(63.3%, 39.2%, 0%, 69%)
CIE-LAB	lab(19.80, 3.26, -21.36)
CIE-LCH	lch(19.80, 21.61, 278.67°)
OKLab	oklab(30.95% -0.0109 -0.0604)
OKLCH	oklch(30.95% 0.061 259.8)
XYZ	xyz(2.9744, 2.9394, 7.8062)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D304F #4F3C1D

analogous

#1D494F #1D304F #231D4F

triadic

#1D304F #4F1D30 #304F1D

tetradic

#1D304F #4F1D49 #4F3C1D #1D4F23

square

#1D304F #4F1D49 #4F3C1D #1D4F23

split-complementary

#1D304F #4F231D #494F1D

monochromatic

#080E16 #0D1522 #1D304F #2D4B7C #3E66A9

Accessibility & contrast

On white

13.22

#1D304F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1D304F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D304F

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D304F	#FFFFFF	#000000	##FFFFFF
##1D304F	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#233250

Deuteranopia (green-blind)

#1D2E4E

Tritanopia (blue-blind)

#00373B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d304f;
/* rgb */ color: rgb(29, 48, 79);
/* oklch */ color: oklch(31.0% 0.061 259.8);

Tailwind

colors: {
  custom: {
    50: '#5e6880',
    500: '#1d304f',
    950: '#000000',
  },
}

SCSS

$custom: #1d304f;
$custom-light: #5e6880;
$custom-dark: #000000;

JSON

{
  "hex": "#1d304f",
  "rgb": {
    "r": 29,
    "g": 48,
    "b": 79
  },
  "hsl": {
    "h": 217.2,
    "s": 46.296,
    "l": 21.176
  },
  "oklch": {
    "l": 0.30953,
    "c": 0.06142,
    "h": 259.8
  },
  "luminance": 0.0294
}

Semantic roles & 50–950 ramp

primary

#1D304F

secondary

#846C44

accent

#A452D6

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #1D304F

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

Preview Lab → · Contrast checker → · Palette generator →