#11585E
Closest named color: Deep Teal (#00555A). oklch(42.2% 0.066 203.6), rgb(17, 88, 94).
Aa
White text reads best on this color (8.13:1).
About this color
#11585E is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.066 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.014 away. White text reads best on it, at 8.13:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.58:1 |
| White text | 8.13:1 |
Values
| HEX | #11585E |
| RGB | rgb(17, 88, 94) |
| HSL | hsl(185, 69%, 22%) |
| OKLCH | oklch(42.2% 0.066 203.6) |
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 #11585E | 8.13:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #11585E | 2.58:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #11585E text on white | 8.13:1 | AAA | Lc 87.8 | Fine for body text |
| #11585E text on black | 2.58:1 | Fails | Lc -14.3 | 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
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEDF
oklch(88.6% 0.021 200.4)
-
Step 300
300
#A4C8CC
oklch(80.8% 0.039 204.7)
-
Step 400
400
#71ACB2
oklch(70.6% 0.062 204)
-
Step 500
500
#47989F
oklch(63.2% 0.079 203)
-
Step 600
600
#21828A
oklch(55.7% 0.086 203.3)
-
Step 700
700
#0F6E75
oklch(49.2% 0.08 202.9)
-
Step 800
800 (this color)
#11585E
oklch(42.2% 0.066 203.6)
-
Step 900
900
#194A4E
oklch(37.8% 0.052 202.7)
-
Step 950
950
#112B2E
oklch(27% 0.032 205.4)
#11585E 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) | #50545E | 0.065 |
| Deuteranopia (no green cones) | #464C5E | 0.061 |
| Tritanopia (no blue cones) | #005C5A | 0.017 |
| Achromatopsia (no color) | #4F4F4F | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11585E
#11585E
oklch(42.2% 0.066 203.6)
- #6D3F3C
#6D3F3C
oklch(42.2% 0.065 24.2)
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 #11585E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.014
- Petrol #005F6A ΔE 0.025
- Dark Slate Gray #2F4F4F ΔE 0.035
- Dark Blue Green #005249 ΔE 0.038
- Dark Teal #014D4E ΔE 0.042
- Dark Green Blue #1F6357 ΔE 0.043
- Dark Aqua #05696B ΔE 0.053
- Charcoal #264653 ΔE 0.056
Use #11585E 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.