#1F499E#1F499E

#1F499E is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.8% C 0.146 H 262.3°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F499E
RGB	rgb(31, 73, 158)
HSL	hsl(220, 67%, 37%)
HSV	hsv(220, 80%, 62%)
CMYK	cmyk(80.4%, 53.8%, 0%, 38%)
CIE-LAB	lab(32.97, 17.80, -50.33)
CIE-LCH	lch(32.97, 53.39, 289.47°)
OKLab	oklab(42.83% -0.0196 -0.1451)
OKLCH	oklch(42.83% 0.146 262.3)
XYZ	xyz(9.1170, 7.5239, 33.3129)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F499E #9E741F

analogous

#1F899E #1F499E #341F9E

triadic

#1F499E #9E1F49 #499E1F

tetradic

#1F499E #9E1F89 #9E741F #1F9E34

square

#1F499E #9E1F89 #9E741F #1F9E34

split-complementary

#1F499E #9E341F #899E1F

monochromatic

#0B1A38 #15316B #1F499E #2961D1 #5985DE

Accessibility & contrast

On white

8.38

#1F499E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1F499E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F499E

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F499E	#FFFFFF	#000000	##FFFFFF
##1F499E	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0754A1

Deuteranopia (green-blind)

#00489C

Tritanopia (blue-blind)

#005E6C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f499e;
/* rgb */ color: rgb(31, 73, 158);
/* oklch */ color: oklch(42.8% 0.146 262.3);

Tailwind

colors: {
  custom: {
    50: '#707bbb',
    500: '#1f499e',
    950: '#000000',
  },
}

SCSS

$custom: #1f499e;
$custom-light: #707bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f499e",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 158
  },
  "hsl": {
    "h": 220.157,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.42831,
    "c": 0.1464,
    "h": 262.3
  },
  "luminance": 0.07525
}

Semantic roles & 50–950 ramp

primary

#1F499E

secondary

#C29F56

accent

#B13EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1F499E

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

Preview Lab → · Contrast checker → · Palette generator →