#1F658B#1F658B

#1F658B is a mid, moderate cyan. Relative luminance 0.115; OKLCH L 48.2% C 0.091 H 237.2°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F658B
RGB	rgb(31, 101, 139)
HSL	hsl(201, 64%, 33%)
HSV	hsv(201, 78%, 55%)
CMYK	cmyk(77.7%, 27.3%, 0%, 45.5%)
CIE-LAB	lab(40.35, -7.80, -27.11)
CIE-LCH	lch(40.35, 28.21, 253.94°)
OKLab	oklab(48.21% -0.0493 -0.0765)
OKLCH	oklch(48.21% 0.091 237.2)
XYZ	xyz(9.8771, 11.4616, 26.1128)
Luminance	0.1146 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F658B #8B451F

analogous

#1F8B7B #1F658B #1F2F8B

triadic

#1F658B #8B1F65 #658B1F

tetradic

#1F658B #7B1F8B #8B451F #2F8B1F

square

#1F658B #7B1F8B #8B451F #2F8B1F

split-complementary

#1F658B #8B1F2F #8B7B1F

monochromatic

#091C27 #144159 #1F658B #2A89BD #4DA7D7

Accessibility & contrast

On white

6.38

#1F658B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#1F658B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F658B

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F658B	#FFFFFF	#000000	##FFFFFF
##1F658B	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#53658D

Deuteranopia (green-blind)

#445B8A

Tritanopia (blue-blind)

#006F72

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1f658b;
/* rgb */ color: rgb(31, 101, 139);
/* oklch */ color: oklch(48.2% 0.091 237.2);

Tailwind

colors: {
  custom: {
    50: '#6b90ad',
    500: '#1f658b',
    950: '#000000',
  },
}

SCSS

$custom: #1f658b;
$custom-light: #6b90ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f658b",
  "rgb": {
    "r": 31,
    "g": 101,
    "b": 139
  },
  "hsl": {
    "h": 201.111,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.48207,
    "c": 0.09103,
    "h": 237.2
  },
  "luminance": 0.11463
}

Semantic roles & 50–950 ramp

primary

#1F658B

secondary

#BA734C

accent

#7B41E7

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1F658B

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

Preview Lab → · Contrast checker → · Palette generator →