#1D3B98#1D3B98

#1D3B98 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.156 H 265.7°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#1D3B98
RGB	rgb(29, 59, 152)
HSL	hsl(225, 68%, 35%)
HSV	hsv(225, 81%, 60%)
CMYK	cmyk(80.9%, 61.2%, 0%, 40.4%)
CIE-LAB	lab(28.53, 24.77, -53.93)
CIE-LCH	lch(28.53, 59.34, 294.67°)
OKLab	oklab(39.31% -0.0117 -0.1559)
OKLCH	oklch(39.31% 0.156 265.7)
XYZ	xyz(7.7362, 5.6552, 30.3835)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3B98 #987A1D

analogous

#1D7898 #1D3B98 #3C1D98

triadic

#1D3B98 #981D3B #3B981D

tetradic

#1D3B98 #981D78 #987A1D #1D983C

square

#1D3B98 #981D78 #987A1D #1D983C

split-complementary

#1D3B98 #983C1D #78981D

monochromatic

#091331 #132765 #1D3B98 #274FCB #5274DE

Accessibility & contrast

On white

9.85

#1D3B98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1D3B98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3B98

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3B98	#FFFFFF	#000000	##FFFFFF
##1D3B98	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499B

Deuteranopia (green-blind)

#003E96

Tritanopia (blue-blind)

#005363

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1d3b98;
/* rgb */ color: rgb(29, 59, 152);
/* oklch */ color: oklch(39.3% 0.156 265.7);

Tailwind

colors: {
  custom: {
    50: '#6f70b7',
    500: '#1d3b98',
    950: '#000000',
  },
}

SCSS

$custom: #1d3b98;
$custom-light: #6f70b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3b98",
  "rgb": {
    "r": 29,
    "g": 59,
    "b": 152
  },
  "hsl": {
    "h": 225.366,
    "s": 67.956,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39312,
    "c": 0.15635,
    "h": 265.7
  },
  "luminance": 0.05656
}

Semantic roles & 50–950 ramp

primary

#1D3B98

secondary

#C1A550

accent

#C03DEB

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1D3B98

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

Preview Lab → · Contrast checker → · Palette generator →