#11575A
Closest named color: Deep Teal (#00555A). oklch(41.8% 0.065 199.3), rgb(17, 87, 90).
Aa
White text reads best on this color (8.28:1).
About this color
#11575A is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.065 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.010 away. White text reads best on it, at 8.28:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.53:1 |
| White text | 8.28:1 |
Values
| HEX | #11575A |
| RGB | rgb(17, 87, 90) |
| HSL | hsl(182, 68%, 21%) |
| OKLCH | oklch(41.8% 0.065 199.3) |
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 #11575A | 8.28:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #11575A | 2.53:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #11575A text on white | 8.28:1 | AAA | Lc 88.3 | Fine for body text |
| #11575A text on black | 2.53:1 | Fails | Lc -13.9 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEDE
oklch(88.6% 0.021 196.8)
-
Step 300
300
#A5C9CA
oklch(81% 0.038 198.5)
-
Step 400
400
#72ADAF
oklch(70.8% 0.061 198.6)
-
Step 500
500
#48989B
oklch(63.1% 0.078 198.7)
-
Step 600
600
#238286
oklch(55.6% 0.085 199.2)
-
Step 700
700
#136E72
oklch(49.1% 0.079 199.6)
-
Step 800
800 (this color)
#11575A
oklch(41.8% 0.065 199.3)
-
Step 900
900
#1A4A4C
oklch(37.8% 0.051 199)
-
Step 950
950
#112B2C
oklch(26.9% 0.032 198.8)
#11575A 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 | 0.066 |
| Deuteranopia (no green cones) | #464B5A | 0.062 |
| Tritanopia (no blue cones) | #005A58 | 0.012 |
| Achromatopsia (no color) | #4E4E4E | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11575A
#11575A
oklch(41.8% 0.065 199.3)
- #6C3D3E
#6C3D3E
oklch(41.8% 0.066 18.9)
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 #11575A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.010
- Petrol #005F6A ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.031
- Dark Blue Green #005249 ΔE 0.032
- Dark Teal #014D4E ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.044
- Charcoal #264653 ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.057
Use #11575A 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.