#1D177A#1D177A

#1D177A is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.157 H 274.0°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#1D177A
RGB	rgb(29, 23, 122)
HSL	hsl(244, 68%, 28%)
HSV	hsv(244, 81%, 48%)
CMYK	cmyk(76.2%, 81.1%, 0%, 52.2%)
CIE-LAB	lab(16.89, 36.75, -54.31)
CIE-LCH	lch(16.89, 65.58, 304.08°)
OKLab	oklab(29.95% 0.0109 -0.1571)
OKLCH	oklch(29.95% 0.157 274)
XYZ	xyz(4.3248, 2.2787, 18.6205)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D177A #747A17

analogous

#17427A #1D177A #4E177A

triadic

#1D177A #7A1D17 #177A1D

tetradic

#1D177A #7A1742 #747A17 #177A4E

square

#1D177A #7A1742 #747A17 #177A4E

split-complementary

#1D177A #7A4E17 #427A17

monochromatic

#06051A #110D47 #1D177A #2921AD #3D33D9

Accessibility & contrast

On white

14.43

#1D177A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1D177A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D177A

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D177A	#FFFFFF	#000000	##FFFFFF
##1D177A	1.00	14.43	1.46	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7D

Deuteranopia (green-blind)

#002578

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1d177a;
/* rgb */ color: rgb(29, 23, 122);
/* oklch */ color: oklch(30.0% 0.157 274.0);

Tailwind

colors: {
  custom: {
    50: '#6a56a2',
    500: '#1d177a',
    950: '#000000',
  },
}

SCSS

$custom: #1d177a;
$custom-light: #6a56a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d177a",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 122
  },
  "hsl": {
    "h": 243.636,
    "s": 68.276,
    "l": 28.431
  },
  "oklch": {
    "l": 0.29954,
    "c": 0.15749,
    "h": 274
  },
  "luminance": 0.02279
}

Semantic roles & 50–950 ramp

primary

#1D177A

secondary

#A8AF3E

accent

#EB3DE1

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1D177A

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

Preview Lab → · Contrast checker → · Palette generator →