#1B5948
Closest named color: Dark Blue Green (#005249). oklch(41.9% 0.069 171.3), rgb(27, 89, 72).
Aa
White text reads best on this color (8.17:1).
About this color
#1B5948 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.069 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.029 away. White text reads best on it, at 8.17:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.56:1 |
| White text | 8.17:1 |
Values
| HEX | #1B5948 |
| RGB | rgb(27, 89, 72) |
| HSL | hsl(164, 53%, 23%) |
| OKLCH | oklch(41.9% 0.069 171.3) |
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 #1B5948 | 8.17:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #1B5948 | 2.56:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #1B5948 text on white | 8.17:1 | AAA | Lc 88.0 | Fine for body text |
| #1B5948 text on black | 2.56:1 | Fails | Lc -14.1 | 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 800.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CBDED7
oklch(88.4% 0.022 171.7)
-
Step 300
300
#A7CABD
oklch(81% 0.042 170.7)
-
Step 400
400
#77AE9B
oklch(70.7% 0.064 170.8)
-
Step 500
500
#509A83
oklch(63.2% 0.083 171.1)
-
Step 600
600
#2F846C
oklch(55.5% 0.09 171)
-
Step 700
700
#20705B
oklch(49.2% 0.083 171.6)
-
Step 800
800 (this color)
#1B5948
oklch(41.9% 0.069 171.3)
-
Step 900
900
#1F4B3E
oklch(37.7% 0.054 171.4)
-
Step 950
950
#132C24
oklch(27% 0.035 170.7)
#1B5948 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) | #565347 | 0.071 |
| Deuteranopia (no green cones) | #4E4D49 | 0.068 |
| Tritanopia (no blue cones) | #005A54 | 0.020 |
| Achromatopsia (no color) | #4F4F4F | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5948
#1B5948
oklch(41.9% 0.069 171.3)
- #693C51
#693C51
oklch(41.8% 0.069 351.1)
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 #1B5948, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.029
- Dark Green Blue #1F6357 ΔE 0.036
- Pine #2B5D34 ΔE 0.038
- Deep Teal #00555A ΔE 0.038
- Spruce #0A5F38 ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.042
- Dark Teal #014D4E ΔE 0.048
- Petrol #005F6A ΔE 0.053
Use #1B5948 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.