#1D4B98#1D4B98

#1D4B98 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.7% C 0.136 H 260.2°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D4B98
RGB	rgb(29, 75, 152)
HSL	hsl(218, 68%, 35%)
HSV	hsv(218, 81%, 60%)
CMYK	cmyk(80.9%, 50.7%, 0%, 40.4%)
CIE-LAB	lab(33.05, 13.82, -46.58)
CIE-LCH	lch(33.05, 48.59, 286.53°)
OKLab	oklab(42.73% -0.0232 -0.134)
OKLCH	oklch(42.73% 0.136 260.2)
XYZ	xyz(8.6882, 7.5593, 30.7009)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4B98 #986A1D

analogous

#1D8898 #1D4B98 #2C1D98

triadic

#1D4B98 #981D4B #4B981D

tetradic

#1D4B98 #981D88 #986A1D #1D982C

square

#1D4B98 #981D88 #986A1D #1D982C

split-complementary

#1D4B98 #982C1D #88981D

monochromatic

#091831 #133265 #1D4B98 #2764CB #5286DE

Accessibility & contrast

On white

8.36

#1D4B98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1D4B98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B98

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4B98	#FFFFFF	#000000	##FFFFFF
##1D4B98	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C549B

Deuteranopia (green-blind)

#004896

Tritanopia (blue-blind)

#005E6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d4b98;
/* rgb */ color: rgb(29, 75, 152);
/* oklch */ color: oklch(42.7% 0.136 260.2);

Tailwind

colors: {
  custom: {
    50: '#6e7cb7',
    500: '#1d4b98',
    950: '#000000',
  },
}

SCSS

$custom: #1d4b98;
$custom-light: #6e7cb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4b98",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 152
  },
  "hsl": {
    "h": 217.561,
    "s": 67.956,
    "l": 35.49
  },
  "oklch": {
    "l": 0.42732,
    "c": 0.13602,
    "h": 260.2
  },
  "luminance": 0.0756
}

Semantic roles & 50–950 ramp

primary

#1D4B98

secondary

#C19750

accent

#AA3DEB

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D4B98

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

Preview Lab → · Contrast checker → · Palette generator →