#1F2F75#1F2F75

#1F2F75 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.8% C 0.122 H 269.1°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F75
RGB	rgb(31, 47, 117)
HSL	hsl(229, 58%, 29%)
HSV	hsv(229, 74%, 46%)
CMYK	cmyk(73.5%, 59.8%, 0%, 54.1%)
CIE-LAB	lab(22.33, 19.48, -42.17)
CIE-LCH	lch(22.33, 46.46, 294.80°)
OKLab	oklab(33.79% -0.0019 -0.1215)
OKLCH	oklch(33.79% 0.122 269.1)
XYZ	xyz(4.7914, 3.6082, 17.2701)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F75 #75651F

analogous

#1F5A75 #1F2F75 #3A1F75

triadic

#1F2F75 #751F2F #2F751F

tetradic

#1F2F75 #751F5A #75651F #1F753A

square

#1F2F75 #751F5A #75651F #1F753A

split-complementary

#1F2F75 #753A1F #5A751F

monochromatic

#060A18 #121C45 #1F2F75 #2C42A5 #425BCD

Accessibility & contrast

On white

12.20

#1F2F75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1F2F75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F75

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F75	#FFFFFF	#000000	##FFFFFF
##1F2F75	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003977

Deuteranopia (green-blind)

#003274

Tritanopia (blue-blind)

#00404D

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2f75;
/* rgb */ color: rgb(31, 47, 117);
/* oklch */ color: oklch(33.8% 0.122 269.1);

Tailwind

colors: {
  custom: {
    50: '#67679d',
    500: '#1f2f75',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f75;
$custom-light: #67679d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f75",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 117
  },
  "hsl": {
    "h": 228.837,
    "s": 58.108,
    "l": 29.02
  },
  "oklch": {
    "l": 0.33786,
    "c": 0.12155,
    "h": 269.1
  },
  "luminance": 0.03609
}

Semantic roles & 50–950 ramp

primary

#1F2F75

secondary

#A99747

accent

#C546E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1F2F75

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

Preview Lab → · Contrast checker → · Palette generator →