#115C51
Closest named color: Dark Green Blue (#1F6357). oklch(42.8% 0.072 180.3), rgb(17, 92, 81).
Aa
White text reads best on this color (7.85:1).
About this color
#115C51 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.072 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.026 away. White text reads best on it, at 7.85:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.67:1 |
| White text | 7.85:1 |
Values
| HEX | #115C51 |
| RGB | rgb(17, 92, 81) |
| HSL | hsl(171, 69%, 21%) |
| OKLCH | oklch(42.8% 0.072 180.3) |
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 #115C51 | 7.85:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #115C51 | 2.67:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #115C51 text on white | 7.85:1 | AAA | Lc 86.9 | Fine for body text |
| #115C51 text on black | 2.67:1 | Fails | Lc -15.2 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A4CAC2
oklch(80.9% 0.042 181)
-
Step 400
400
#70AFA2
oklch(70.7% 0.068 179.7)
-
Step 500
500
#459A8C
oklch(63% 0.085 181.1)
-
Step 600
600
#1D8576
oklch(55.7% 0.093 180.5)
-
Step 700
700
#097063
oklch(49% 0.086 180.9)
-
Step 800
800 (this color)
#115C51
oklch(42.8% 0.072 180.3)
-
Step 900
900
#184B43
oklch(37.6% 0.056 181)
-
Step 950
950
#102C27
oklch(27% 0.035 180.2)
#115C51 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) | #585651 | 0.077 |
| Deuteranopia (no green cones) | #4E4F52 | 0.072 |
| Tritanopia (no blue cones) | #005E59 | 0.013 |
| Achromatopsia (no color) | #525252 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #115C51
#115C51
oklch(42.8% 0.072 180.3)
- #6F3E4D
#6F3E4D
oklch(42.8% 0.071 0.9)
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 #115C51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.026
- Deep Teal #00555A ΔE 0.033
- Dark Blue Green #005249 ΔE 0.035
- Petrol #005F6A ΔE 0.040
- Spruce #0A5F38 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.045
- Pine #2B5D34 ΔE 0.046
- Dark Aqua #05696B ΔE 0.050
Use #115C51 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.