#1F235F#1F235F

#1F235F is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.3% C 0.105 H 275.0°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX	#1F235F
RGB	rgb(31, 35, 95)
HSL	hsl(236, 51%, 25%)
HSV	hsv(236, 67%, 37%)
CMYK	cmyk(67.4%, 63.2%, 0%, 62.7%)
CIE-LAB	lab(17.08, 19.38, -36.40)
CIE-LCH	lch(17.08, 41.24, 298.03°)
OKLab	oklab(29.29% 0.0091 -0.1047)
OKLCH	oklch(29.29% 0.105 275)
XYZ	xyz(3.2310, 2.3193, 11.1017)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F235F #5F5B1F

analogous

#1F435F #1F235F #3B1F5F

triadic

#1F235F #5F1F23 #235F1F

tetradic

#1F235F #5F1F43 #5F5B1F #1F5F3B

square

#1F235F #5F1F43 #5F5B1F #1F5F3B

split-complementary

#1F235F #5F3B1F #435F1F

monochromatic

#080817 #101231 #1F235F #2E348D #3D45BB

Accessibility & contrast

On white

14.34

#1F235F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1F235F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F235F

14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F235F	#FFFFFF	#000000	##FFFFFF
##1F235F	1.00	14.34	1.46	14.34
#FFFFFF	14.34	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D61

Deuteranopia (green-blind)

#00275E

Tritanopia (blue-blind)

#00323D

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1f235f;
/* rgb */ color: rgb(31, 35, 95);
/* oklch */ color: oklch(29.3% 0.105 275.0);

Tailwind

colors: {
  custom: {
    50: '#635d8d',
    500: '#1f235f',
    950: '#000000',
  },
}

SCSS

$custom: #1f235f;
$custom-light: #635d8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f235f",
  "rgb": {
    "r": 31,
    "g": 35,
    "b": 95
  },
  "hsl": {
    "h": 236.25,
    "s": 50.794,
    "l": 24.706
  },
  "oklch": {
    "l": 0.29291,
    "c": 0.1051,
    "h": 275
  },
  "luminance": 0.0232
}

Semantic roles & 50–950 ramp

primary

#1F235F

secondary

#948F46

accent

#D14EDA

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06040C

muted

#7A797D

Preview Lab

Preview with #1F235F

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

Preview Lab → · Contrast checker → · Palette generator →