#1F1174#1F1174

#1F1174 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.155 H 276.7°. Best body text is #FFFFFF at 15.10:1 contrast (WCAG AA passes).

Color values

HEX	#1F1174
RGB	rgb(31, 17, 116)
HSL	hsl(248, 74%, 26%)
HSV	hsv(248, 85%, 45%)
CMYK	cmyk(73.3%, 85.3%, 0%, 54.5%)
CIE-LAB	lab(15.24, 38.06, -53.18)
CIE-LCH	lch(15.24, 65.39, 305.59°)
OKLab	oklab(28.63% 0.018 -0.1537)
OKLCH	oklch(28.63% 0.155 276.7)
XYZ	xyz(3.9169, 1.9528, 16.6901)
Luminance	0.0195 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1174 #667411

analogous

#113474 #1F1174 #501174

triadic

#1F1174 #741F11 #11741F

tetradic

#1F1174 #741134 #667411 #117450

square

#1F1174 #741134 #667411 #117450

split-complementary

#1F1174 #745011 #347411

monochromatic

#07041B #11093F #1F1174 #2D19A9 #3C21DE

Accessibility & contrast

On white

15.10

#1F1174 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#1F1174 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1174

15.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1174	#FFFFFF	#000000	##FFFFFF
##1F1174	1.00	15.10	1.39	15.10
#FFFFFF	15.10	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A77

Deuteranopia (green-blind)

#002272

Tritanopia (blue-blind)

#003044

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1f1174;
/* rgb */ color: rgb(31, 17, 116);
/* oklch */ color: oklch(28.6% 0.155 276.7);

Tailwind

colors: {
  custom: {
    50: '#6a539d',
    500: '#1f1174',
    950: '#000000',
  },
}

SCSS

$custom: #1f1174;
$custom-light: #6a539d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1174",
  "rgb": {
    "r": 31,
    "g": 17,
    "b": 116
  },
  "hsl": {
    "h": 248.485,
    "s": 74.436,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28633,
    "c": 0.15473,
    "h": 276.7
  },
  "luminance": 0.01953
}

Semantic roles & 50–950 ramp

primary

#1F1174

secondary

#9AAB36

accent

#F137D7

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1F1174

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

Preview Lab → · Contrast checker → · Palette generator →