#1D4B97#1D4B97

#1D4B97 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.7% C 0.135 H 260.0°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#1D4B97
RGB	rgb(29, 75, 151)
HSL	hsl(217, 68%, 35%)
HSV	hsv(217, 81%, 59%)
CMYK	cmyk(80.8%, 50.3%, 0%, 40.8%)
CIE-LAB	lab(32.98, 13.42, -46.09)
CIE-LCH	lch(32.98, 48.00, 286.23°)
OKLab	oklab(42.66% -0.0234 -0.1326)
OKLCH	oklch(42.66% 0.135 260)
XYZ	xyz(8.6067, 7.5267, 30.2713)
Luminance	0.0753 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4B97 #97691D

analogous

#1D8897 #1D4B97 #2C1D97

triadic

#1D4B97 #971D4B #4B971D

tetradic

#1D4B97 #971D88 #97691D #1D972C

square

#1D4B97 #971D88 #97691D #1D972C

split-complementary

#1D4B97 #972C1D #88971D

monochromatic

#091830 #133164 #1D4B97 #2764CA #5186DE

Accessibility & contrast

On white

8.38

#1D4B97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1D4B97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B97

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4B97	#FFFFFF	#000000	##FFFFFF
##1D4B97	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D539A

Deuteranopia (green-blind)

#004895

Tritanopia (blue-blind)

#005D6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d4b97;
/* rgb */ color: rgb(29, 75, 151);
/* oklch */ color: oklch(42.7% 0.135 260.0);

Tailwind

colors: {
  custom: {
    50: '#6d7cb6',
    500: '#1d4b97',
    950: '#000000',
  },
}

SCSS

$custom: #1d4b97;
$custom-light: #6d7cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4b97",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 151
  },
  "hsl": {
    "h": 217.377,
    "s": 67.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.42656,
    "c": 0.13462,
    "h": 260
  },
  "luminance": 0.07528
}

Semantic roles & 50–950 ramp

primary

#1D4B97

secondary

#C0964F

accent

#A93DEB

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D4B97

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

Preview Lab → · Contrast checker → · Palette generator →