#1F498E#1F498E

#1F498E is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.6% C 0.124 H 259.9°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#1F498E
RGB	rgb(31, 73, 142)
HSL	hsl(217, 64%, 34%)
HSV	hsv(217, 78%, 56%)
CMYK	cmyk(78.2%, 48.6%, 0%, 44.3%)
CIE-LAB	lab(31.83, 11.40, -42.45)
CIE-LCH	lch(31.83, 43.96, 285.03°)
OKLab	oklab(41.59% -0.0218 -0.1219)
OKLCH	oklch(41.59% 0.124 259.9)
XYZ	xyz(7.8283, 7.0085, 26.5261)
Luminance	0.0701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F498E #8E641F

analogous

#1F818E #1F498E #2C1F8E

triadic

#1F498E #8E1F49 #498E1F

tetradic

#1F498E #8E1F81 #8E641F #1F8E2C

square

#1F498E #8E1F81 #8E641F #1F8E2C

split-complementary

#1F498E #8E2C1F #818E1F

monochromatic

#09152A #142F5C #1F498E #2A63C0 #4F83D9

Accessibility & contrast

On white

8.74

#1F498E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1F498E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F498E

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F498E	#FFFFFF	#000000	##FFFFFF
##1F498E	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#235091

Deuteranopia (green-blind)

#02468D

Tritanopia (blue-blind)

#005964

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f498e;
/* rgb */ color: rgb(31, 73, 142);
/* oklch */ color: oklch(41.6% 0.124 259.9);

Tailwind

colors: {
  custom: {
    50: '#6c7baf',
    500: '#1f498e',
    950: '#000000',
  },
}

SCSS

$custom: #1f498e;
$custom-light: #6c7baf;
$custom-dark: #000000;

JSON

{
  "hex": "#1f498e",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 142
  },
  "hsl": {
    "h": 217.297,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.41591,
    "c": 0.12382,
    "h": 259.9
  },
  "luminance": 0.07009
}

Semantic roles & 50–950 ramp

primary

#1F498E

secondary

#BB924D

accent

#A841E7

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #1F498E

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

Preview Lab → · Contrast checker → · Palette generator →