#1F433B#1F433B
#1F433B is a dark, muted teal. Relative luminance 0.046; OKLCH L 35.3% C 0.044 H 177.3°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).
Color values
| HEX | #1F433B |
|---|---|
| RGB | rgb(31, 67, 59) |
| HSL | hsl(167, 37%, 19%) |
| HSV | hsv(167, 54%, 26%) |
| CMYK | cmyk(53.7%, 0%, 11.9%, 73.7%) |
| CIE-LAB | lab(25.63, -15.31, 0.87) |
| CIE-LCH | lch(25.63, 15.33, 176.76°) |
| OKLab | oklab(35.33% -0.0442 0.0021) |
| OKLCH | oklch(35.33% 0.044 177.3) |
| XYZ | xyz(3.3613, 4.6211, 4.8517) |
| Luminance | 0.0462 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Darkslategray
#2F4F4F
ΔE00 6.32
Dark Teal
#014D4E
ΔE00 6.48
Dark Blue Green
#005249
ΔE00 6.69
Deep Teal
#00555A
ΔE00 9.19
Evergreen
#05472A
ΔE00 9.24
Dark Turquoise
#045C5A
ΔE00 9.62
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F433B #431F27
analogous
#1F4329 #1F433B #1F3943
triadic
#1F433B #3B1F43 #433B1F
tetradic
#1F433B #291F43 #431F27 #39431F
square
#1F433B #291F43 #431F27 #39431F
split-complementary
#1F433B #431F39 #43291F
monochromatic
#0A1512 #0C1916 #1F433B #326D60 #469785
Accessibility & contrast
On white
10.91
#1F433B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.92
#1F433B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F433B
10.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F433B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F433B | 1.00 | 10.91 | 1.92 | 10.91 |
| #FFFFFF | 10.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.92 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#413F3B
Deuteranopia (green-blind)
#3B3B3C
Tritanopia (blue-blind)
#104441
Achromatopsia (no color)
#3D3D3D
Design tokens & code
CSS
--color: #1f433b; /* rgb */ color: rgb(31, 67, 59); /* oklch */ color: oklch(35.3% 0.044 177.3);
Tailwind
colors: {
custom: {
50: '#5e7770',
500: '#1f433b',
950: '#000000',
},
}SCSS
$custom: #1f433b; $custom-light: #5e7770; $custom-dark: #000000;
JSON
{
"hex": "#1f433b",
"rgb": {
"r": 31,
"g": 67,
"b": 59
},
"hsl": {
"h": 166.667,
"s": 36.735,
"l": 19.216
},
"oklch": {
"l": 0.35327,
"c": 0.04424,
"h": 177.3
},
"luminance": 0.04621
}Semantic roles & 50–950 ramp
primary
#1F433B
secondary
#774651
accent
#5B74CD
background
#F5F7F6
surface
#E9EDEC
border
#C5C8C7
text
#040807
muted
#797B7A