#1B5963#1B5963
#1B5963 is a dark, moderate teal. Relative luminance 0.083; OKLCH L 43.0% C 0.063 H 210.3°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).
Color values
| HEX | #1B5963 |
|---|---|
| RGB | rgb(27, 89, 99) |
| HSL | hsl(188, 57%, 25%) |
| HSV | hsv(188, 73%, 39%) |
| CMYK | cmyk(72.7%, 10.1%, 0%, 61.2%) |
| CIE-LAB | lab(34.56, -15.82, -11.49) |
| CIE-LCH | lch(34.56, 19.56, 215.99°) |
| OKLab | oklab(42.97% -0.0547 -0.0319) |
| OKLCH | oklch(42.97% 0.063 210.3) |
| XYZ | xyz(6.2755, 8.2779, 13.0690) |
| Luminance | 0.0828 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Petrol
#005F6A
ΔE00 2.75
Deep Teal
#00555A
ΔE00 3.86
Darkslategray
#2F4F4F
ΔE00 6.33
Dark Teal
#014D4E
ΔE00 6.51
Dark Turquoise
#045C5A
ΔE00 6.92
Dark Aqua
#05696B
ΔE00 7.48
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B5963 #63251B
analogous
#1B6349 #1B5963 #1B3563
triadic
#1B5963 #631B59 #59631B
tetradic
#1B5963 #491B63 #63251B #35631B
square
#1B5963 #491B63 #63251B #35631B
split-complementary
#1B5963 #631B35 #63491B
monochromatic
#071618 #0E2E33 #1B5963 #288493 #35AFC3
Accessibility & contrast
On white
7.91
#1B5963 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.66
#1B5963 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B5963
7.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B5963 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B5963 | 1.00 | 7.91 | 2.66 | 7.91 |
| #FFFFFF | 7.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.66 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#515664
Deuteranopia (green-blind)
#464E63
Tritanopia (blue-blind)
#005D5C
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #1b5963; /* rgb */ color: rgb(27, 89, 99); /* oklch */ color: oklch(43.0% 0.063 210.3);
Tailwind
colors: {
custom: {
50: '#63888f',
500: '#1b5963',
950: '#000000',
},
}SCSS
$custom: #1b5963; $custom-light: #63888f; $custom-dark: #000000;
JSON
{
"hex": "#1b5963",
"rgb": {
"r": 27,
"g": 89,
"b": 99
},
"hsl": {
"h": 188.333,
"s": 57.143,
"l": 24.706
},
"oklch": {
"l": 0.42965,
"c": 0.06337,
"h": 210.3
},
"luminance": 0.08279
}Semantic roles & 50–950 ramp
primary
#1B5963
secondary
#984D41
accent
#5D47E0
background
#F6F8F8
surface
#EBEFF0
border
#C6CACB
text
#060B0C
muted
#7A7C7D