#1D54B3#1D54B3

#1D54B3 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.8% C 0.162 H 260.6°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#1D54B3
RGB	rgb(29, 84, 179)
HSL	hsl(218, 72%, 41%)
HSV	hsv(218, 84%, 70%)
CMYK	cmyk(83.8%, 53.1%, 0%, 29.8%)
CIE-LAB	lab(37.58, 18.55, -55.39)
CIE-LCH	lch(37.58, 58.42, 288.52°)
OKLab	oklab(46.81% -0.0263 -0.1598)
OKLCH	oklch(46.81% 0.162 260.6)
XYZ	xyz(11.8107, 9.8551, 43.9188)
Luminance	0.0986 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D54B3 #B37C1D

analogous

#1D9FB3 #1D54B3 #311DB3

triadic

#1D54B3 #B31D54 #54B31D

tetradic

#1D54B3 #B31D9F #B37C1D #1DB331

square

#1D54B3 #B31D9F #B37C1D #1DB331

split-complementary

#1D54B3 #B3311D #9FB31D

monochromatic

#0C234A #143B7E #1D54B3 #306FDD #6494E6

Accessibility & contrast

On white

7.07

#1D54B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#1D54B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D54B3

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D54B3	#FFFFFF	#000000	##FFFFFF
##1D54B3	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0960B6

Deuteranopia (green-blind)

#0052B1

Tritanopia (blue-blind)

#006B7B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1d54b3;
/* rgb */ color: rgb(29, 84, 179);
/* oklch */ color: oklch(46.8% 0.162 260.6);

Tailwind

colors: {
  custom: {
    50: '#7483ca',
    500: '#1d54b3',
    950: '#000000',
  },
}

SCSS

$custom: #1d54b3;
$custom-light: #7483ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1d54b3",
  "rgb": {
    "r": 29,
    "g": 84,
    "b": 179
  },
  "hsl": {
    "h": 218,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.46813,
    "c": 0.16192,
    "h": 260.6
  },
  "luminance": 0.09857
}

Semantic roles & 50–950 ramp

primary

#1D54B3

secondary

#CBA461

accent

#AC39EF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1D54B3

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

Preview Lab → · Contrast checker → · Palette generator →