#115B57
Closest named color: Deep Teal (#00555A). oklch(42.8% 0.068 189.4), rgb(17, 91, 87).
Aa
White text reads best on this color (7.90:1).
About this color
#115B57 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.068 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.024 away. White text reads best on it, at 7.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #115B57 |
| RGB | rgb(17, 91, 87) |
| HSL | hsl(177, 69%, 21%) |
| OKLCH | oklch(42.8% 0.068 189.4) |
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 #115B57 | 7.90:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #115B57 | 2.65:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #115B57 text on white | 7.90:1 | AAA | Lc 87.1 | Fine for body text |
| #115B57 text on black | 2.65:1 | Fails | Lc -15.0 | Dividers and decoration only |
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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#C9DEDC
oklch(88.4% 0.023 189.8)
-
Step 300
300
#A4C9C6
oklch(80.8% 0.04 190.3)
-
Step 400
400
#70AEA9
oklch(70.7% 0.064 189.3)
-
Step 500
500
#459994
oklch(63% 0.082 190)
-
Step 600
600
#1D847E
oklch(55.7% 0.089 188.9)
-
Step 700
700
#0A6F6B
oklch(49% 0.082 190.4)
-
Step 800
800 (this color)
#115B57
oklch(42.8% 0.068 189.4)
-
Step 900
900
#184B47
oklch(37.8% 0.054 187.9)
-
Step 950
950
#102C2A
oklch(27.1% 0.034 189.1)
#115B57 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) | #555657 | 0.072 |
| Deuteranopia (no green cones) | #4B4E58 | 0.068 |
| Tritanopia (no blue cones) | #005E5A | 0.010 |
| Achromatopsia (no color) | #515151 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #115B57
#115B57
oklch(42.8% 0.068 189.4)
- #6F3F47
#6F3F47
oklch(42.8% 0.068 9.6)
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 #115B57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.024
- Dark Green Blue #1F6357 ΔE 0.029
- Petrol #005F6A ΔE 0.030
- Dark Blue Green #005249 ΔE 0.035
- Dark Slate Gray #2F4F4F ΔE 0.040
- Dark Teal #014D4E ΔE 0.047
- Dark Aqua #05696B ΔE 0.048
- Spruce #0A5F38 ΔE 0.056
Use #115B57 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.