#1D489B#1D489B

#1D489B is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.3% C 0.144 H 261.8°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#1D489B
RGB	rgb(29, 72, 155)
HSL	hsl(220, 68%, 36%)
HSV	hsv(220, 81%, 61%)
CMYK	cmyk(81.3%, 53.5%, 0%, 39.2%)
CIE-LAB	lab(32.40, 17.07, -49.46)
CIE-LCH	lch(32.40, 52.32, 289.04°)
OKLab	oklab(42.3% -0.0205 -0.1425)
OKLCH	oklch(42.3% 0.144 261.8)
XYZ	xyz(8.7383, 7.2615, 31.9450)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D489B #9B701D

analogous

#1D879B #1D489B #311D9B

triadic

#1D489B #9B1D48 #489B1D

tetradic

#1D489B #9B1D87 #9B701D #1D9B31

square

#1D489B #9B1D87 #9B701D #1D9B31

split-complementary

#1D489B #9B311D #879B1D

monochromatic

#0A1834 #133067 #1D489B #2760CF #5383DF

Accessibility & contrast

On white

8.56

#1D489B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1D489B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D489B

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D489B	#FFFFFF	#000000	##FFFFFF
##1D489B	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A529E

Deuteranopia (green-blind)

#004799

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1d489b;
/* rgb */ color: rgb(29, 72, 155);
/* oklch */ color: oklch(42.3% 0.144 261.8);

Tailwind

colors: {
  custom: {
    50: '#6f7ab9',
    500: '#1d489b',
    950: '#000000',
  },
}

SCSS

$custom: #1d489b;
$custom-light: #6f7ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d489b",
  "rgb": {
    "r": 29,
    "g": 72,
    "b": 155
  },
  "hsl": {
    "h": 219.524,
    "s": 68.478,
    "l": 36.078
  },
  "oklch": {
    "l": 0.42303,
    "c": 0.14402,
    "h": 261.8
  },
  "luminance": 0.07262
}

Semantic roles & 50–950 ramp

primary

#1D489B

secondary

#C29C52

accent

#B03CEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D489B

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

Preview Lab → · Contrast checker → · Palette generator →