#1F498D#1F498D

#1F498D is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.5% C 0.122 H 259.7°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#1F498D
RGB	rgb(31, 73, 141)
HSL	hsl(217, 64%, 34%)
HSV	hsv(217, 78%, 55%)
CMYK	cmyk(78%, 48.2%, 0%, 44.7%)
CIE-LAB	lab(31.76, 11.00, -41.95)
CIE-LCH	lch(31.76, 43.37, 284.69°)
OKLab	oklab(41.52% -0.0219 -0.1204)
OKLCH	oklch(41.52% 0.122 259.7)
XYZ	xyz(7.7536, 6.9786, 26.1325)
Luminance	0.0698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F498D #8D631F

analogous

#1F808D #1F498D #2C1F8D

triadic

#1F498D #8D1F49 #498D1F

tetradic

#1F498D #8D1F80 #8D631F #1F8D2C

square

#1F498D #8D1F80 #8D631F #1F8D2C

split-complementary

#1F498D #8D2C1F #808D1F

monochromatic

#091529 #142F5B #1F498D #2A63BF #4E83D8

Accessibility & contrast

On white

8.77

#1F498D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1F498D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F498D

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F498D	#FFFFFF	#000000	##FFFFFF
##1F498D	1.00	8.77	2.40	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245090

Deuteranopia (green-blind)

#05468C

Tritanopia (blue-blind)

#005964

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f498d;
/* rgb */ color: rgb(31, 73, 141);
/* oklch */ color: oklch(41.5% 0.122 259.7);

Tailwind

colors: {
  custom: {
    50: '#6c7baf',
    500: '#1f498d',
    950: '#000000',
  },
}

SCSS

$custom: #1f498d;
$custom-light: #6c7baf;
$custom-dark: #000000;

JSON

{
  "hex": "#1f498d",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 141
  },
  "hsl": {
    "h": 217.091,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.41517,
    "c": 0.12239,
    "h": 259.7
  },
  "luminance": 0.06979
}

Semantic roles & 50–950 ramp

primary

#1F498D

secondary

#BB914D

accent

#A841E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1F498D

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

Preview Lab → · Contrast checker → · Palette generator →