#17504D
Closest named color: Dark Blue Green (#005249). oklch(39.4% 0.058 190.1), rgb(23, 80, 77).
Aa
White text reads best on this color (9.16:1).
About this color
#17504D is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.058 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.015 away. White text reads best on it, at 9.16:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.29:1 |
| White text | 9.16:1 |
Values
| HEX | #17504D |
| RGB | rgb(23, 80, 77) |
| HSL | hsl(177, 55%, 20%) |
| OKLCH | oklch(39.4% 0.058 190.1) |
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 #17504D | 9.16:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #17504D | 2.29:1 | Fails | Lc 13.1 | Not readable |
| #17504D text on white | 9.16:1 | AAA | Lc 90.9 | Preferred for body text |
| #17504D text on black | 2.29:1 | Fails | Lc -11.5 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C8DFDC
oklch(88.6% 0.025 187.3)
-
Step 300
300
#A1CAC7
oklch(80.9% 0.044 190.8)
-
Step 400
400
#6BAFAA
oklch(70.7% 0.07 189.7)
-
Step 500
500
#3B9B95
oklch(63.2% 0.089 189.4)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900 (this color)
#17504D
oklch(39.4% 0.058 190.1)
-
Step 950
950
#0D2C2A
oklch(26.9% 0.037 189.4)
#17504D 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) | #4B4C4D | 0.061 |
| Deuteranopia (no green cones) | #42454E | 0.058 |
| Tritanopia (no blue cones) | #00524F | 0.010 |
| Achromatopsia (no color) | #484848 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17504D
#17504D
oklch(39.4% 0.058 190.1)
- #61393F
#61393F
oklch(39.5% 0.057 10.3)
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 #17504D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.015
- Dark Teal #014D4E ΔE 0.016
- Dark Slate Gray #2F4F4F ΔE 0.023
- Deep Teal #00555A ΔE 0.023
- Charcoal #264653 ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.057
- Petrol #005F6A ΔE 0.058
Use #17504D 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.