#1F386E#1F386E

#1F386E is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.2% C 0.099 H 263.5°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#1F386E
RGB	rgb(31, 56, 110)
HSL	hsl(221, 56%, 28%)
HSV	hsv(221, 72%, 43%)
CMYK	cmyk(71.8%, 49.1%, 0%, 56.9%)
CIE-LAB	lab(24.47, 10.30, -34.25)
CIE-LCH	lch(24.47, 35.76, 286.74°)
OKLab	oklab(35.23% -0.0112 -0.0981)
OKLCH	oklch(35.23% 0.099 263.5)
XYZ	xyz(4.7927, 4.2450, 15.3156)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F386E #6E551F

analogous

#1F5F6E #1F386E #2E1F6E

triadic

#1F386E #6E1F38 #386E1F

tetradic

#1F386E #6E1F5F #6E551F #1F6E2E

square

#1F386E #6E1F5F #6E551F #1F6E2E

split-complementary

#1F386E #6E2E1F #5F6E1F

monochromatic

#070C18 #12203E #1F386E #2C509E #3F6AC9

Accessibility & contrast

On white

11.36

#1F386E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1F386E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F386E

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F386E	#FFFFFF	#000000	##FFFFFF
##1F386E	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C3E70

Deuteranopia (green-blind)

#0C376D

Tritanopia (blue-blind)

#00454D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f386e;
/* rgb */ color: rgb(31, 56, 110);
/* oklch */ color: oklch(35.2% 0.099 263.5);

Tailwind

colors: {
  custom: {
    50: '#656e98',
    500: '#1f386e',
    950: '#000000',
  },
}

SCSS

$custom: #1f386e;
$custom-light: #656e98;
$custom-dark: #000000;

JSON

{
  "hex": "#1f386e",
  "rgb": {
    "r": 31,
    "g": 56,
    "b": 110
  },
  "hsl": {
    "h": 221.013,
    "s": 56.028,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35233,
    "c": 0.09871,
    "h": 263.5
  },
  "luminance": 0.04245
}

Semantic roles & 50–950 ramp

primary

#1F386E

secondary

#A28547

accent

#B048DF

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1F386E

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

Preview Lab → · Contrast checker → · Palette generator →