#17575A
Closest named color: Deep Teal (#00555A). oklch(41.9% 0.062 199.6), rgb(23, 87, 90).
Aa
White text reads best on this color (8.24:1).
About this color
#17575A is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.062 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.013 away. White text reads best on it, at 8.24:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.54:1 |
| White text | 8.24:1 |
Values
| HEX | #17575A |
| RGB | rgb(23, 87, 90) |
| HSL | hsl(183, 59%, 22%) |
| OKLCH | oklch(41.9% 0.062 199.6) |
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 #17575A | 8.24:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #17575A | 2.54:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #17575A text on white | 8.24:1 | AAA | Lc 88.2 | Fine for body text |
| #17575A text on black | 2.54:1 | Fails | Lc -14.0 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDE
oklch(88.4% 0.019 200.8)
-
Step 300
300
#A6C8CA
oklch(80.9% 0.036 200.9)
-
Step 400
400
#74ACAF
oklch(70.7% 0.059 200.2)
-
Step 500
500
#4C979B
oklch(63% 0.075 200)
-
Step 600
600
#2A8286
oklch(55.7% 0.081 199.4)
-
Step 700
700
#1B6D71
oklch(49% 0.075 199.9)
-
Step 800
800 (this color)
#17575A
oklch(41.9% 0.062 199.6)
-
Step 900
900
#1D494C
oklch(37.6% 0.048 201.4)
-
Step 950
950
#122B2C
oklch(27% 0.031 198.9)
#17575A 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) | #50535A | 0.063 |
| Deuteranopia (no green cones) | #464C5A | 0.058 |
| Tritanopia (no blue cones) | #005A58 | 0.014 |
| Achromatopsia (no color) | #4F4F4F | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17575A
#17575A
oklch(41.9% 0.062 199.6)
- #6B3F3F
#6B3F3F
oklch(42% 0.062 20)
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 #17575A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.013
- Dark Slate Gray #2F4F4F ΔE 0.030
- Petrol #005F6A ΔE 0.031
- Dark Blue Green #005249 ΔE 0.033
- Dark Teal #014D4E ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.043
- Charcoal #264653 ΔE 0.053
- Dark Aqua #05696B ΔE 0.056
Use #17575A 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.