#1F4641
Closest named color: Dark Teal (#014D4E). oklch(36.4% 0.045 184.5), rgb(31, 70, 65).
Aa
White text reads best on this color (10.44:1).
About this color
#1F4641 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.045 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.028 away. White text reads best on it, at 10.44:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.01:1 |
| White text | 10.44:1 |
Values
| HEX | #1F4641 |
| RGB | rgb(31, 70, 65) |
| HSL | hsl(172, 39%, 20%) |
| OKLCH | oklch(36.4% 0.045 184.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #1F4641 | 10.44:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #1F4641 | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #1F4641 text on white | 10.44:1 | AAA | Lc 94.1 | Preferred for body text |
| #1F4641 text on black | 2.01:1 | Fails | Lc -8.4 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDDDA
oklch(88.4% 0.019 184.2)
-
Step 300
300
#A9C8C3
oklch(80.8% 0.034 184.7)
-
Step 400
400
#7AACA5
oklch(70.7% 0.054 185.2)
-
Step 500
500
#55978E
oklch(63% 0.069 184.4)
-
Step 600
600
#378279
oklch(55.7% 0.076 184.7)
-
Step 700
700
#286E65
oklch(49.2% 0.071 183.5)
-
Step 800
800
#235953
oklch(42.6% 0.058 185.4)
-
Step 900
900 (this color)
#1F4641
oklch(36.4% 0.045 184.5)
-
Step 950
950
#152B28
oklch(27% 0.029 184.5)
#1F4641 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #434241 | 0.049 |
| Deuteranopia (no green cones) | #3C3E42 | 0.045 |
| Tritanopia (no blue cones) | #0A4744 | 0.014 |
| Achromatopsia (no color) | #404040 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F4641
#1F4641
oklch(36.4% 0.045 184.5)
- #53343B
#53343B
oklch(36.4% 0.046 4.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #1F4641, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.028
- Charcoal #264653 ΔE 0.034
- Dark Blue Green #005249 ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.040
- Onyx #343A40 ΔE 0.045
- Evergreen #05472A ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.049
Use #1F4641 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.