#17554A
Closest named color: Dark Blue Green (#005249). oklch(40.7% 0.065 178.6), rgb(23, 85, 74).
Aa
White text reads best on this color (8.62:1).
About this color
#17554A is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.065 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.016 away. White text reads best on it, at 8.62:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.43:1 |
| White text | 8.62:1 |
Values
| HEX | #17554A |
| RGB | rgb(23, 85, 74) |
| HSL | hsl(169, 57%, 21%) |
| OKLCH | oklch(40.7% 0.065 178.6) |
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 #17554A | 8.62:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #17554A | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #17554A text on white | 8.62:1 | AAA | Lc 89.3 | Fine for body text |
| #17554A text on black | 2.43:1 | Fails | Lc -12.9 | 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 800.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CBDED9
oklch(88.5% 0.021 178.3)
-
Step 300
300
#A7C9C1
oklch(80.9% 0.038 179.4)
-
Step 400
400
#77ADA1
oklch(70.6% 0.06 179.1)
-
Step 500
500
#50998A
oklch(63.1% 0.077 178.7)
-
Step 600
600
#2F8374
oklch(55.5% 0.084 179.1)
-
Step 700
700
#206F61
oklch(49.1% 0.078 178.5)
-
Step 800
800 (this color)
#17554A
oklch(40.7% 0.065 178.6)
-
Step 900
900
#1F4A42
oklch(37.6% 0.05 179.6)
-
Step 950
950
#132C27
oklch(27.1% 0.033 179.2)
#17554A 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) | #51504A | 0.068 |
| Deuteranopia (no green cones) | #49494B | 0.066 |
| Tritanopia (no blue cones) | #005652 | 0.014 |
| Achromatopsia (no color) | #4C4C4C | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17554A
#17554A
oklch(40.7% 0.065 178.6)
- #663A49
#663A49
oklch(40.7% 0.065 358.5)
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 #17554A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.016
- Deep Teal #00555A ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.031
- Dark Teal #014D4E ΔE 0.033
- Dark Green Blue #1F6357 ΔE 0.047
- Spruce #0A5F38 ΔE 0.051
- Pine #2B5D34 ΔE 0.051
- Petrol #005F6A ΔE 0.053
Use #17554A 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.