#1B4E4C
Closest named color: Dark Teal (#014D4E). oklch(38.9% 0.054 191.6), rgb(27, 78, 76).
Aa
White text reads best on this color (9.37:1).
About this color
#1B4E4C is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.054 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.014 away. White text reads best on it, at 9.37:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.24:1 |
| White text | 9.37:1 |
Values
| HEX | #1B4E4C |
| RGB | rgb(27, 78, 76) |
| HSL | hsl(178, 49%, 21%) |
| OKLCH | oklch(38.9% 0.054 191.6) |
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 #1B4E4C | 9.37:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #1B4E4C | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #1B4E4C text on white | 9.37:1 | AAA | Lc 91.4 | Preferred for body text |
| #1B4E4C text on black | 2.24:1 | Fails | Lc -10.9 | 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
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#C9DEDD
oklch(88.5% 0.022 193.3)
-
Step 300
300
#A4C9C7
oklch(80.9% 0.039 192.3)
-
Step 400
400
#6FAEAB
oklch(70.7% 0.065 191.9)
-
Step 500
500
#449996
oklch(63% 0.082 192.1)
-
Step 600
600
#198480
oklch(55.7% 0.09 190.9)
-
Step 700
700
#046F6C
oklch(49% 0.083 191.5)
-
Step 800
800
#0E5B58
oklch(42.8% 0.069 190.8)
-
Step 900
900 (this color)
#1B4E4C
oklch(38.9% 0.054 191.6)
-
Step 950
950
#102C2B
oklch(27.1% 0.034 192.2)
#1B4E4C 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) | #494A4C | 0.056 |
| Deuteranopia (no green cones) | #41444C | 0.053 |
| Tritanopia (no blue cones) | #00504D | 0.013 |
| Achromatopsia (no color) | #464646 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4E4C
#1B4E4C
oklch(38.9% 0.054 191.6)
- #5E393D
#5E393D
oklch(39% 0.053 12.8)
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 #1B4E4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.014
- Dark Blue Green #005249 ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.021
- Deep Teal #00555A ΔE 0.027
- Charcoal #264653 ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.051
- Evergreen #05472A ΔE 0.060
Use #1B4E4C 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.