#1D54BC#1D54BC

#1D54BC is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.5% C 0.174 H 261.6°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#1D54BC
RGB	rgb(29, 84, 188)
HSL	hsl(219, 73%, 43%)
HSV	hsv(219, 85%, 74%)
CMYK	cmyk(84.6%, 55.3%, 0%, 26.3%)
CIE-LAB	lab(38.25, 22.10, -59.59)
CIE-LCH	lch(38.25, 63.56, 290.35°)
OKLab	oklab(47.54% -0.0254 -0.1721)
OKLCH	oklch(47.54% 0.174 261.6)
XYZ	xyz(12.7508, 10.2311, 48.8700)
Luminance	0.1023 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D54BC #BC851D

analogous

#1DA4BC #1D54BC #351DBC

triadic

#1D54BC #BC1D54 #54BC1D

tetradic

#1D54BC #BC1DA4 #BC851D #1DBC35

square

#1D54BC #BC1DA4 #BC851D #1DBC35

split-complementary

#1D54BC #BC351D #A4BC1D

monochromatic

#0D2552 #153C87 #1D54BC #3671E0 #6B96E8

Accessibility & contrast

On white

6.89

#1D54BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#1D54BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D54BC

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D54BC	#FFFFFF	#000000	##FFFFFF
##1D54BC	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C0

Deuteranopia (green-blind)

#0053BA

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1d54bc;
/* rgb */ color: rgb(29, 84, 188);
/* oklch */ color: oklch(47.5% 0.174 261.6);

Tailwind

colors: {
  custom: {
    50: '#7683d1',
    500: '#1d54bc',
    950: '#000000',
  },
}

SCSS

$custom: #1d54bc;
$custom-light: #7683d1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d54bc",
  "rgb": {
    "r": 29,
    "g": 84,
    "b": 188
  },
  "hsl": {
    "h": 219.245,
    "s": 73.272,
    "l": 42.549
  },
  "oklch": {
    "l": 0.47537,
    "c": 0.17397,
    "h": 261.6
  },
  "luminance": 0.10233
}

Semantic roles & 50–950 ramp

primary

#1D54BC

secondary

#CEAA67

accent

#B038F0

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0A14

muted

#7C7C82

Preview Lab

Preview with #1D54BC

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

Preview Lab → · Contrast checker → · Palette generator →