#1F498C#1F498C

#1F498C is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.4% C 0.121 H 259.5°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#1F498C
RGB	rgb(31, 73, 140)
HSL	hsl(217, 64%, 34%)
HSV	hsv(217, 78%, 55%)
CMYK	cmyk(77.9%, 47.9%, 0%, 45.1%)
CIE-LAB	lab(31.69, 10.59, -41.44)
CIE-LCH	lch(31.69, 42.78, 284.34°)
OKLab	oklab(41.44% -0.0221 -0.1189)
OKLCH	oklch(41.44% 0.121 259.5)
XYZ	xyz(7.6795, 6.9490, 25.7424)
Luminance	0.0695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F498C #8C621F

analogous

#1F7F8C #1F498C #2B1F8C

triadic

#1F498C #8C1F49 #498C1F

tetradic

#1F498C #8C1F7F #8C621F #1F8C2B

square

#1F498C #8C1F7F #8C621F #1F8C2B

split-complementary

#1F498C #8C2B1F #7F8C1F

monochromatic

#091528 #142F5A #1F498C #2A63BE #4E83D8

Accessibility & contrast

On white

8.79

#1F498C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1F498C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F498C

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F498C	#FFFFFF	#000000	##FFFFFF
##1F498C	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25508F

Deuteranopia (green-blind)

#09468B

Tritanopia (blue-blind)

#005963

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f498c;
/* rgb */ color: rgb(31, 73, 140);
/* oklch */ color: oklch(41.4% 0.121 259.5);

Tailwind

colors: {
  custom: {
    50: '#6b7bae',
    500: '#1f498c',
    950: '#000000',
  },
}

SCSS

$custom: #1f498c;
$custom-light: #6b7bae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f498c",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 140
  },
  "hsl": {
    "h": 216.881,
    "s": 63.743,
    "l": 33.529
  },
  "oklch": {
    "l": 0.41443,
    "c": 0.12096,
    "h": 259.5
  },
  "luminance": 0.0695
}

Semantic roles & 50–950 ramp

primary

#1F498C

secondary

#BB904C

accent

#A741E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1F498C

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

Preview Lab → · Contrast checker → · Palette generator →