#1F658F#1F658F

#1F658F is a mid, moderate cyan. Relative luminance 0.116; OKLCH L 48.4% C 0.096 H 239.9°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#1F658F
RGB	rgb(31, 101, 143)
HSL	hsl(203, 64%, 34%)
HSV	hsv(203, 78%, 56%)
CMYK	cmyk(78.3%, 29.4%, 0%, 43.9%)
CIE-LAB	lab(40.54, -6.30, -29.21)
CIE-LCH	lch(40.54, 29.88, 257.82°)
OKLab	oklab(48.43% -0.0479 -0.0826)
OKLCH	oklch(48.43% 0.096 239.9)
XYZ	xyz(10.1747, 11.5806, 27.6803)
Luminance	0.1158 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F658F #8F491F

analogous

#1F8F81 #1F658F #1F2D8F

triadic

#1F658F #8F1F65 #658F1F

tetradic

#1F658F #811F8F #8F491F #2D8F1F

square

#1F658F #811F8F #8F491F #2D8F1F

split-complementary

#1F658F #8F1F2D #8F811F

monochromatic

#091E2A #14415D #1F658F #2A89C1 #4FA5D9

Accessibility & contrast

On white

6.33

#1F658F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#1F658F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F658F

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F658F	#FFFFFF	#000000	##FFFFFF
##1F658F	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#516591

Deuteranopia (green-blind)

#425B8E

Tritanopia (blue-blind)

#007074

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #1f658f;
/* rgb */ color: rgb(31, 101, 143);
/* oklch */ color: oklch(48.4% 0.096 239.9);

Tailwind

colors: {
  custom: {
    50: '#6c90b0',
    500: '#1f658f',
    950: '#000000',
  },
}

SCSS

$custom: #1f658f;
$custom-light: #6c90b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f658f",
  "rgb": {
    "r": 31,
    "g": 101,
    "b": 143
  },
  "hsl": {
    "h": 202.5,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.48426,
    "c": 0.09551,
    "h": 239.9
  },
  "luminance": 0.11582
}

Semantic roles & 50–950 ramp

primary

#1F658F

secondary

#BC774E

accent

#7F40E7

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #1F658F

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

Preview Lab → · Contrast checker → · Palette generator →