#1B4746
Closest named color: Dark Teal (#014D4E). oklch(36.7% 0.048 193.2), rgb(27, 71, 70).
Aa
White text reads best on this color (10.31:1).
About this color
#1B4746 is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.048 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.022 away. White text reads best on it, at 10.31:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.03:1 |
| White text | 10.31:1 |
Values
| HEX | #1B4746 |
| RGB | rgb(27, 71, 70) |
| HSL | hsl(179, 45%, 19%) |
| OKLCH | oklch(36.7% 0.048 193.2) |
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 #1B4746 | 10.31:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #1B4746 | 2.03:1 | Fails | Lc 10.2 | Not readable |
| #1B4746 text on white | 10.31:1 | AAA | Lc 93.8 | Preferred for body text |
| #1B4746 text on black | 2.03:1 | Fails | Lc -8.8 | 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
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDEDD
oklch(88.6% 0.02 193)
-
Step 300
300
#A7C8C7
oklch(80.8% 0.035 194.2)
-
Step 400
400
#75ACAB
oklch(70.6% 0.058 194.5)
-
Step 500
500
#4E9896
oklch(63.2% 0.074 193.1)
-
Step 600
600
#2C8280
oklch(55.6% 0.08 192.9)
-
Step 700
700
#1D6E6C
oklch(49.1% 0.075 192.6)
-
Step 800
800
#1C5A58
oklch(42.8% 0.062 192)
-
Step 900
900 (this color)
#1B4746
oklch(36.7% 0.048 193.2)
-
Step 950
950
#132B2B
oklch(27% 0.03 195.5)
#1B4746 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) | #434346 | 0.052 |
| Deuteranopia (no green cones) | #3B3E46 | 0.047 |
| Tritanopia (no blue cones) | #004947 | 0.015 |
| Achromatopsia (no color) | #404040 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4746
#1B4746
oklch(36.7% 0.048 193.2)
- #553438
#553438
oklch(36.6% 0.048 11.8)
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 #1B4746, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.022
- Charcoal #264653 ΔE 0.028
- Dark Blue Green #005249 ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.046
- Onyx #343A40 ΔE 0.047
Use #1B4746 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.