#1F538F#1F538F

#1F538F is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 44.0% C 0.113 H 254.3°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#1F538F
RGB	rgb(31, 83, 143)
HSL	hsl(212, 64%, 34%)
HSV	hsv(212, 78%, 56%)
CMYK	cmyk(78.3%, 42%, 0%, 43.9%)
CIE-LAB	lab(34.92, 5.10, -38.10)
CIE-LCH	lch(34.92, 38.44, 277.62°)
OKLab	oklab(44.01% -0.0305 -0.1089)
OKLCH	oklch(44.01% 0.113 254.3)
XYZ	xyz(8.6144, 8.4600, 27.1602)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F538F #8F5B1F

analogous

#1F8B8F #1F538F #231F8F

triadic

#1F538F #8F1F53 #538F1F

tetradic

#1F538F #8F1F8B #8F5B1F #1F8F23

square

#1F538F #8F1F8B #8F5B1F #1F8F23

split-complementary

#1F538F #8F231F #8B8F1F

monochromatic

#09192A #14365D #1F538F #2A70C1 #4F8FD9

Accessibility & contrast

On white

7.80

#1F538F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1F538F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F538F

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F538F	#FFFFFF	#000000	##FFFFFF
##1F538F	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365891

Deuteranopia (green-blind)

#234D8E

Tritanopia (blue-blind)

#00616A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1f538f;
/* rgb */ color: rgb(31, 83, 143);
/* oklch */ color: oklch(44.0% 0.113 254.3);

Tailwind

colors: {
  custom: {
    50: '#6c82b0',
    500: '#1f538f',
    950: '#000000',
  },
}

SCSS

$custom: #1f538f;
$custom-light: #6c82b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f538f",
  "rgb": {
    "r": 31,
    "g": 83,
    "b": 143
  },
  "hsl": {
    "h": 212.143,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.44008,
    "c": 0.1131,
    "h": 254.3
  },
  "luminance": 0.08461
}

Semantic roles & 50–950 ramp

primary

#1F538F

secondary

#BC894E

accent

#9A40E7

background

#F6F7FA

surface

#ECEEF5

border

#C7C9CF

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1F538F

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

Preview Lab → · Contrast checker → · Palette generator →