#1D128F#1D128F

#1D128F is a dark, vivid blue. Relative luminance 0.027; OKLCH L 32.0% C 0.187 H 272.1°. Best body text is #FFFFFF at 13.68:1 contrast (WCAG AA passes).

Color values

HEX	#1D128F
RGB	rgb(29, 18, 143)
HSL	hsl(245, 78%, 32%)
HSV	hsv(245, 87%, 56%)
CMYK	cmyk(79.7%, 87.4%, 0%, 43.9%)
CIE-LAB	lab(18.70, 45.91, -64.57)
CIE-LCH	lch(18.70, 79.23, 305.41°)
OKLab	oklab(31.97% 0.0068 -0.1867)
OKLCH	oklch(31.97% 0.187 272.1)
XYZ	xyz(5.6793, 2.6764, 26.1985)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D128F #848F12

analogous

#12468F #1D128F #5C128F

triadic

#1D128F #8F1D12 #128F1D

tetradic

#1D128F #8F1246 #848F12 #128F5C

square

#1D128F #8F1246 #848F12 #128F5C

split-complementary

#1D128F #8F5C12 #468F12

monochromatic

#070422 #120B59 #1D128F #2819C5 #4536E6

Accessibility & contrast

On white

13.68

#1D128F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1D128F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D128F

13.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D128F	#FFFFFF	#000000	##FFFFFF
##1D128F	1.00	13.68	1.54	13.68
#FFFFFF	13.68	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003392

Deuteranopia (green-blind)

#00278D

Tritanopia (blue-blind)

#003C54

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d128f;
/* rgb */ color: rgb(29, 18, 143);
/* oklch */ color: oklch(32.0% 0.187 272.1);

Tailwind

colors: {
  custom: {
    50: '#7056b1',
    500: '#1d128f',
    950: '#000000',
  },
}

SCSS

$custom: #1d128f;
$custom-light: #7056b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d128f",
  "rgb": {
    "r": 29,
    "g": 18,
    "b": 143
  },
  "hsl": {
    "h": 245.28,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31966,
    "c": 0.18686,
    "h": 272.1
  },
  "luminance": 0.02677
}

Semantic roles & 50–950 ramp

primary

#1D128F

secondary

#B7C33A

accent

#F434E3

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1D128F

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

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