#1F459C#1F459C

#1F459C is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.8% C 0.149 H 263.5°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#1F459C
RGB	rgb(31, 69, 156)
HSL	hsl(222, 67%, 37%)
HSV	hsv(222, 80%, 61%)
CMYK	cmyk(80.1%, 55.8%, 0%, 38.8%)
CIE-LAB	lab(31.69, 19.72, -51.21)
CIE-LCH	lch(31.69, 54.88, 291.06°)
OKLab	oklab(41.81% -0.0168 -0.1477)
OKLCH	oklch(41.81% 0.149 263.5)
XYZ	xyz(8.6918, 6.9468, 32.3288)
Luminance	0.0695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F459C #9C761F

analogous

#1F849C #1F459C #381F9C

triadic

#1F459C #9C1F45 #459C1F

tetradic

#1F459C #9C1F84 #9C761F #1F9C38

square

#1F459C #9C1F84 #9C761F #1F9C38

split-complementary

#1F459C #9C381F #849C1F

monochromatic

#0B1836 #152E69 #1F459C #295CCF #5880DE

Accessibility & contrast

On white

8.79

#1F459C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1F459C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F459C

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F459C	#FFFFFF	#000000	##FFFFFF
##1F459C	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)

#00519F

Deuteranopia (green-blind)

#00459A

Tritanopia (blue-blind)

#005A69

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f459c;
/* rgb */ color: rgb(31, 69, 156);
/* oklch */ color: oklch(41.8% 0.149 263.5);

Tailwind

colors: {
  custom: {
    50: '#7078ba',
    500: '#1f459c',
    950: '#000000',
  },
}

SCSS

$custom: #1f459c;
$custom-light: #7078ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f459c",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 156
  },
  "hsl": {
    "h": 221.76,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.41809,
    "c": 0.14869,
    "h": 263.5
  },
  "luminance": 0.06948
}

Semantic roles & 50–950 ramp

primary

#1F459C

secondary

#C1A155

accent

#B63EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1F459C

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

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