#1F498F#1F498F

#1F498F is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.7% C 0.125 H 260.1°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#1F498F
RGB	rgb(31, 73, 143)
HSL	hsl(218, 64%, 34%)
HSV	hsv(218, 78%, 56%)
CMYK	cmyk(78.3%, 49%, 0%, 43.9%)
CIE-LAB	lab(31.89, 11.80, -42.95)
CIE-LCH	lch(31.89, 44.54, 285.36°)
OKLab	oklab(41.67% -0.0216 -0.1234)
OKLCH	oklch(41.67% 0.125 260.1)
XYZ	xyz(7.9037, 7.0387, 26.9233)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F498F #8F651F

analogous

#1F818F #1F498F #2D1F8F

triadic

#1F498F #8F1F49 #498F1F

tetradic

#1F498F #8F1F81 #8F651F #1F8F2D

square

#1F498F #8F1F81 #8F651F #1F8F2D

split-complementary

#1F498F #8F2D1F #818F1F

monochromatic

#09162A #142F5D #1F498F #2A63C1 #4F83D9

Accessibility & contrast

On white

8.72

#1F498F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#1F498F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F498F

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F498F	#FFFFFF	#000000	##FFFFFF
##1F498F	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225092

Deuteranopia (green-blind)

#00468E

Tritanopia (blue-blind)

#005A65

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f498f;
/* rgb */ color: rgb(31, 73, 143);
/* oklch */ color: oklch(41.7% 0.125 260.1);

Tailwind

colors: {
  custom: {
    50: '#6c7bb0',
    500: '#1f498f',
    950: '#000000',
  },
}

SCSS

$custom: #1f498f;
$custom-light: #6c7bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f498f",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 143
  },
  "hsl": {
    "h": 217.5,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.41666,
    "c": 0.12525,
    "h": 260.1
  },
  "luminance": 0.0704
}

Semantic roles & 50–950 ramp

primary

#1F498F

secondary

#BC934E

accent

#A940E7

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #1F498F

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

Preview Lab → · Contrast checker → · Palette generator →