#17525A
Closest named color: Deep Teal (#00555A). oklch(40.5% 0.06 208), rgb(23, 82, 90).
Aa
White text reads best on this color (8.78:1).
About this color
#17525A is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.060 and its hue 208°. 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 8.78:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.39:1 |
| White text | 8.78:1 |
Values
| HEX | #17525A |
| RGB | rgb(23, 82, 90) |
| HSL | hsl(187, 59%, 22%) |
| OKLCH | oklch(40.5% 0.06 208) |
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 #17525A | 8.78:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #17525A | 2.39:1 | Fails | Lc 14.2 | Not readable |
| #17525A text on white | 8.78:1 | AAA | Lc 89.8 | Fine for body text |
| #17525A text on black | 2.39:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CBDDE0
oklch(88.5% 0.02 208.8)
-
Step 300
300
#A7C7CC
oklch(80.8% 0.035 208)
-
Step 400
400
#77ABB3
oklch(70.8% 0.056 208)
-
Step 500
500
#5096A0
oklch(63.1% 0.072 207.5)
-
Step 600
600
#30808B
oklch(55.6% 0.078 207.8)
-
Step 700
700
#216C76
oklch(49.1% 0.073 207.8)
-
Step 800
800 (this color)
#17525A
oklch(40.5% 0.06 208)
-
Step 900
900
#20494F
oklch(37.9% 0.047 208)
-
Step 950
950
#142B2E
oklch(27.2% 0.029 206.4)
#17525A 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) | #4A4F5B | 0.057 |
| Deuteranopia (no green cones) | #41485A | 0.052 |
| Tritanopia (no blue cones) | #005654 | 0.021 |
| Achromatopsia (no color) | #4B4B4B | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17525A
#17525A
oklch(40.5% 0.06 208)
- #663C37
#663C37
oklch(40.5% 0.06 27.3)
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 #17525A, 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 0.025
- Dark Teal #014D4E ΔE 0.028
- Dark Blue Green #005249 ΔE 0.033
- Charcoal #264653 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.041
- Petrol #005F6A ΔE 0.042
- Dark Green Blue #1F6357 ΔE 0.059
Use #17525A 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.