#1B4D47
Closest named color: Dark Teal (#014D4E). oklch(38.5% 0.054 184.4), rgb(27, 77, 71).
Aa
White text reads best on this color (9.54:1).
About this color
#1B4D47 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.054 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.016 away. White text reads best on it, at 9.54:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.19:1 |
| White text | 9.54:1 |
Values
| HEX | #1B4D47 |
| RGB | rgb(27, 77, 71) |
| HSL | hsl(173, 48%, 20%) |
| OKLCH | oklch(38.5% 0.054 184.4) |
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 #1B4D47 | 9.54:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #1B4D47 | 2.19:1 | Fails | Lc 12.0 | Not readable |
| #1B4D47 text on white | 9.54:1 | AAA | Lc 91.9 | Preferred for body text |
| #1B4D47 text on black | 2.19:1 | Fails | Lc -10.5 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2EDEB
oklch(93.7% 0.012 184.1)
-
Step 200
200
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A4CAC4
oklch(81% 0.041 184.7)
-
Step 400
400
#71AEA5
oklch(70.7% 0.065 184.2)
-
Step 500
500
#469A8F
oklch(63.1% 0.083 183.9)
-
Step 600
600
#1E847A
oklch(55.5% 0.09 185)
-
Step 700
700
#0B7066
oklch(49.1% 0.084 183.9)
-
Step 800
800
#115B53
oklch(42.6% 0.07 184)
-
Step 900
900 (this color)
#1B4D47
oklch(38.5% 0.054 184.4)
-
Step 950
950
#102C28
oklch(27% 0.035 183.1)
#1B4D47 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) | #494947 | 0.057 |
| Deuteranopia (no green cones) | #414348 | 0.054 |
| Tritanopia (no blue cones) | #004F4B | 0.013 |
| Achromatopsia (no color) | #454545 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4D47
#1B4D47
oklch(38.5% 0.054 184.4)
- #5C3740
#5C3740
oklch(38.4% 0.054 4.2)
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 #1B4D47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.016
- Dark Blue Green #005249 ΔE 0.019
- Dark Slate Gray #2F4F4F ΔE 0.026
- Deep Teal #00555A ΔE 0.034
- Charcoal #264653 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.050
- Evergreen #05472A ΔE 0.052
Use #1B4D47 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.