#1F589A#1F589A
#1F589A is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 45.9% C 0.122 H 254.6°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).
Color values
| HEX | #1F589A |
|---|---|
| RGB | rgb(31, 88, 154) |
| HSL | hsl(212, 66%, 36%) |
| HSV | hsv(212, 80%, 60%) |
| CMYK | cmyk(79.9%, 42.9%, 0%, 39.6%) |
| CIE-LAB | lab(37.12, 6.17, -41.24) |
| CIE-LCH | lch(37.12, 41.70, 278.51°) |
| OKLab | oklab(45.93% -0.0325 -0.118) |
| OKLCH | oklch(45.93% 0.122 254.6) |
| XYZ | xyz(9.8854, 9.6027, 31.8981) |
| Luminance | 0.0960 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 2.32
Light Navy Blue
#2E5A88
ΔE00 2.45
Denim Blue
#3B5B92
ΔE00 3.59
Light Navy
#155084
ΔE00 3.73
Denim (survey)
#3B638C
ΔE00 4.63
Denim
#1560BD
ΔE00 4.65
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F589A #9A611F
analogous
#1F969A #1F589A #241F9A
triadic
#1F589A #9A1F58 #589A1F
tetradic
#1F589A #9A1F96 #9A611F #1F9A24
square
#1F589A #9A1F96 #9A611F #1F9A24
split-complementary
#1F589A #9A241F #969A1F
monochromatic
#0A1E34 #153B67 #1F589A #2975CD #5695DD
Accessibility & contrast
On white
7.19
#1F589A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.92
#1F589A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F589A
7.19:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F589A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F589A | 1.00 | 7.19 | 2.92 | 7.19 |
| #FFFFFF | 7.19 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.92 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.19 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#375D9D
Deuteranopia (green-blind)
#215299
Tritanopia (blue-blind)
#006871
Achromatopsia (no color)
#575757
Design tokens & code
CSS
--color: #1f589a; /* rgb */ color: rgb(31, 88, 154); /* oklch */ color: oklch(45.9% 0.122 254.6);
Tailwind
colors: {
custom: {
50: '#6e86b8',
500: '#1f589a',
950: '#000000',
},
}SCSS
$custom: #1f589a; $custom-light: #6e86b8; $custom-dark: #000000;
JSON
{
"hex": "#1f589a",
"rgb": {
"r": 31,
"g": 88,
"b": 154
},
"hsl": {
"h": 212.195,
"s": 66.486,
"l": 36.275
},
"oklch": {
"l": 0.45935,
"c": 0.12244,
"h": 254.6
},
"luminance": 0.09604
}Semantic roles & 50–950 ramp
primary
#1F589A
secondary
#C18E54
accent
#9A3EE9
background
#F7F8FB
surface
#EDEFF6
border
#C8CAD0
text
#080B11
muted
#7B7C80