#1D2F74#1D2F74

#1D2F74 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.6% C 0.121 H 268.1°. Best body text is #FFFFFF at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F74
RGB	rgb(29, 47, 116)
HSL	hsl(228, 60%, 28%)
HSV	hsv(228, 75%, 45%)
CMYK	cmyk(75%, 59.5%, 0%, 54.5%)
CIE-LAB	lab(22.14, 18.79, -41.85)
CIE-LCH	lch(22.14, 45.87, 294.18°)
OKLab	oklab(33.59% -0.004 -0.1206)
OKLCH	oklch(33.59% 0.121 268.1)
XYZ	xyz(4.6745, 3.5547, 16.9594)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F74 #74621D

analogous

#1D5A74 #1D2F74 #361D74

triadic

#1D2F74 #741D2F #2F741D

tetradic

#1D2F74 #741D5A #74621D #1D7436

square

#1D2F74 #741D5A #74621D #1D7436

split-complementary

#1D2F74 #74361D #5A741D

monochromatic

#060A18 #111B43 #1D2F74 #2943A5 #3D5BCE

Accessibility & contrast

On white

12.27

#1D2F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1D2F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F74

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F74	#FFFFFF	#000000	##FFFFFF
##1D2F74	1.00	12.27	1.71	12.27
#FFFFFF	12.27	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003976

Deuteranopia (green-blind)

#003173

Tritanopia (blue-blind)

#00404C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d2f74;
/* rgb */ color: rgb(29, 47, 116);
/* oklch */ color: oklch(33.6% 0.121 268.1);

Tailwind

colors: {
  custom: {
    50: '#66679d',
    500: '#1d2f74',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f74;
$custom-light: #66679d;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f74",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 116
  },
  "hsl": {
    "h": 227.586,
    "s": 60,
    "l": 28.431
  },
  "oklch": {
    "l": 0.33588,
    "c": 0.1207,
    "h": 268.1
  },
  "luminance": 0.03555
}

Semantic roles & 50–950 ramp

primary

#1D2F74

secondary

#A89445

accent

#C245E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1D2F74

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

Preview Lab → · Contrast checker → · Palette generator →