#1F459E#1F459E

#1F459E is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.0% C 0.151 H 263.7°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#1F459E
RGB	rgb(31, 69, 158)
HSL	hsl(222, 67%, 37%)
HSV	hsv(222, 80%, 62%)
CMYK	cmyk(80.4%, 56.3%, 0%, 38%)
CIE-LAB	lab(31.84, 20.52, -52.17)
CIE-LCH	lch(31.84, 56.06, 291.47°)
OKLab	oklab(41.98% -0.0167 -0.1505)
OKLCH	oklch(41.98% 0.151 263.7)
XYZ	xyz(8.8625, 7.0151, 33.2281)
Luminance	0.0702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F459E #9E781F

analogous

#1F859E #1F459E #381F9E

triadic

#1F459E #9E1F45 #459E1F

tetradic

#1F459E #9E1F85 #9E781F #1F9E38

square

#1F459E #9E1F85 #9E781F #1F9E38

split-complementary

#1F459E #9E381F #859E1F

monochromatic

#0B1838 #152F6B #1F459E #295BD1 #5981DE

Accessibility & contrast

On white

8.74

#1F459E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1F459E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F459E

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F459E	#FFFFFF	#000000	##FFFFFF
##1F459E	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)

#0051A1

Deuteranopia (green-blind)

#00459C

Tritanopia (blue-blind)

#005B6A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f459e;
/* rgb */ color: rgb(31, 69, 158);
/* oklch */ color: oklch(42.0% 0.151 263.7);

Tailwind

colors: {
  custom: {
    50: '#7078bb',
    500: '#1f459e',
    950: '#000000',
  },
}

SCSS

$custom: #1f459e;
$custom-light: #7078bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f459e",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 158
  },
  "hsl": {
    "h": 222.047,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.41975,
    "c": 0.15147,
    "h": 263.7
  },
  "luminance": 0.07016
}

Semantic roles & 50–950 ramp

primary

#1F459E

secondary

#C2A256

accent

#B73EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1F459E

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

Preview Lab → · Contrast checker → · Palette generator →