#1F148F#1F148F

#1F148F is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.3% C 0.185 H 272.8°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F148F
RGB	rgb(31, 20, 143)
HSL	hsl(245, 75%, 32%)
HSV	hsv(245, 86%, 56%)
CMYK	cmyk(78.3%, 86%, 0%, 43.9%)
CIE-LAB	lab(19.12, 45.16, -63.87)
CIE-LCH	lch(19.12, 78.23, 305.26°)
OKLab	oklab(32.29% 0.009 -0.1847)
OKLCH	oklch(32.29% 0.185 272.8)
XYZ	xyz(5.7715, 2.7742, 26.2126)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F148F #848F14

analogous

#14478F #1F148F #5D148F

triadic

#1F148F #8F1F14 #148F1F

tetradic

#1F148F #8F1447 #848F14 #148F5D

square

#1F148F #8F1447 #848F14 #148F5D

split-complementary

#1F148F #8F5D14 #478F14

monochromatic

#080524 #130C59 #1F148F #2B1CC5 #493AE3

Accessibility & contrast

On white

13.50

#1F148F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1F148F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F148F

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F148F	#FFFFFF	#000000	##FFFFFF
##1F148F	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003492

Deuteranopia (green-blind)

#00288D

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f148f;
/* rgb */ color: rgb(31, 20, 143);
/* oklch */ color: oklch(32.3% 0.185 272.8);

Tailwind

colors: {
  custom: {
    50: '#7157b1',
    500: '#1f148f',
    950: '#000000',
  },
}

SCSS

$custom: #1f148f;
$custom-light: #7157b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f148f",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 143
  },
  "hsl": {
    "h": 245.366,
    "s": 75.46,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32287,
    "c": 0.18495,
    "h": 272.8
  },
  "luminance": 0.02775
}

Semantic roles & 50–950 ramp

primary

#1F148F

secondary

#B7C33C

accent

#F236E1

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1F148F

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

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